A brief reading of the less-common, but potentially serious side effects of Anafranil (Clomipramine) mentions shaking (tremors).
Tell your doctor if you have unlikely but serious side effects of Anafranil including:
mental/mood changes (e.g., confusion, depression),
enlarged or painful breasts,
unwanted breast milk production,
irregular or painful menstrual periods,
muscle stiffness,
ringing in the ears,
shakiness (tremors), or
trouble urinating.
I would mention this to your doctor. I had swelling and itching of my ankles from one medication. I called the doctor and he told me to stop taking it and he was calling in an alternative medication to try.
Some side effects are reduced or disappear after the body adjusts.
Not all classes of drugs agree with all people. Your doctor is the one to ask. Excessive caffeine probably doesn't help with shakes, it may also counter-act the benefits of certain drugs, so you may want to mention that as well.
Best of luck to you.