Pretty sure I am a Hypochondriac

I've always been a very health conscious person even as a young kid. I never had that "invincable" feeling that one usually has as a kid growing up. Lately, I've been getting panic attacks and been thinking I have every problem you can have. I actually went to the ER with chest pains. They gave me a chest Xray and some blood test that checks your oxygen levels from the blood in your artery. They said I was most likely under a lot of stress and getting panic attacks.

Now I think I am going to get a blood clot or anueryism and I can't sleep.

I think the reason I have been getting worse is from the passing of my grandfather. We were really close and it really hurt me a lot. I'm going to go see a doctor soon. Hopefully they can help me.