I get health phobia more than hypochondria. With hypochondria you focus on one illness and cannot be convinced you don't have it despite tests to prove otherwise.

When depressed I get many physical symptoms and I worry and stress I have a variety of illnesses but do not hyper focus on one too long. It will go from MS, to RA, to Cancer, to ALS, to Epilepsy....and on and on. It's because I feel so bad physically and I bet any person in as much pain as I am in would obsess in the same way....especially when doctors can't fix it and expect you to just do some exercise and get over it.

Is this a problem you commonly have when depressed? The obsession with having cancer?