Hi, Ami,
However anxious you may be (and the issues you mention are enough to make anyone anxious) the physical symptioms you describe could
still have a physical cause, (as well as making it harder to deal with the actual stress). A lot of so-called craziness is not just in patients' heads, in fact advances over the past decade are finding physical causes for more and more cases of anxiety and depression. Sigmund Freud's first analysis patient, whom he confidently diagnosed as being a basket case, was in fact suffering from multiple sclerosis.
This is from the Merck Manual
http://www.merckmanuals.com/home/hormonal_and_metabolic_disorders/hypoglycemia/hypoglycemia.html:
The body first responds to a fall in the level of sugar in the blood by releasing epinephrine from the adrenal glands. Epinephrine stimulates the release of sugar from body stores but also causes symptoms similar to those of an anxiety attack: sweating, nervousness, shaking, faintness, palpitations [...] dizziness, fatigue, weakness, headaches, inability to concentrate, confusion...
Merck lists these as possible symptoms of
hypoglycemia, (suggesting unbalanced insulin levels. )
Imbalances of the thyroid or adrenal glands can also cause palpitations and shakiness, as well as many of the other symptoms you mention.
Sometimes there are
autoimune issues involved (you mention the possibility of rheumatoid arthritis, and sadly a 'negative' blood test is not always conclusive. 20% of officially diagnosed RA suffers never show a positive reading, and for many others it takes years, with doctors tending to withold diagnosis and treatment and allowing the condition to worsen in the meantime). As you may know, autoimmune disorders tend to travel in packs, and so a person with one, may be at risk of getting others. And even when diagnosed, many doctors just prescribe treatments which suppress the symptoms while neglecting the underlying causes.
When money is tight, most of us instinctively tend to increase the more budget-friendly, filling, and comforting, carbohydrate items in our diets -- but this can be a false economy.
Such foods are generally very high in gluten (a trigger for many) and they also cause insulin levels to spike -- potentially triggering the hypoglycemic reactions described by Merck. Search for
Gary Taubes on Youtube, and if possible read his book,
Why We Get Fat: And What to Do about It. This has a full explanation of the insulin issue (this is far more than just a diet book).
The related book,
Wheat Belly by
William Davis, MD carries some fascinating and disturbing information about how this staple food can be damaging our health (the wheat on our tables today, is not the same as the wheat our grandparents ate; it contains only a fraction of the protein and high levels of toxins). William Davis can also be found on Youtube.
Tragically with thyroid and endocrine issues, especially where there is autoimmunity involved, standard blood tests often fail to detect the problem, and it has been estimated that millions are being left untreated. Check out
http://www.stopthethyroidmadness.com This site details
a 'long and pathetic' list of so-called mental health problems that result from improperly treated hormone issues (not just thyroid), as well as exposing some of the typical problems caused by ill-informed doctors and consultants.
For information on
fibromyalgia and the connection with thyroid, check out this article on the work of
Dr. John Lowe:
http://www.prohealth.com/fibromyalgia/library/showArticle.cfm?libid=16826&B1=EM022212F&utm_source=EM022212F&utm_medium=em&utm_campaign=FM&slvor=10807.1059102.0.1.0.65109&eid=kyness%40mindspring.comThe research of
Dr. David Clark on
autoimmune/thyroid/gluten, is also very informative
http://dallasthyroiddoctor.com/fibromyalgia-and-hypothyroid-low-thyroid Dr. Clark (who is gluten intolerent himself) can also be found on youtube. Although he has his own clinic, the main thrust of his research is that a gluten-free diet will control most of these conditions.
Also google
Dr. Joel Wallach of
Dead Doctors Don't Lie. His research shows that the modern diet is severely deficient in minerals because of changes in food production methods, leading to many serious health issues. He has charts online which list the minerals to supplement for a wide range of conditions, and much material on youtube.
Another common deficiency in modern diets -- more so for anyone under stress -- is vitamin B12. See
Could it be B12?: An Epidemic of Misdiagnoses by Sally M. Pacholok and Jeffrey J. Stuart.
Also check out
Dr. Peter Breggin on the neurotoxic effect of psychiatric drugs, before letting any doctor persuade you to take them as a quick fix.
Anyway, hope some of this helps, and good luck!