What to do if i have hypochondria, obsessive thoughts, and panic attacks?

See a psychologist: You should get evaluated. Schedule an appointment with a psychologist for an evaluation. Therapy and/or medication will help if in fact you are obsessive and anxious. Make sure you talk about your symptoms and not a diagnostic label. The obsessivel thoughts sound like OCD features if they are ego dystonic and intrusive.

Get help: Cognitive Behavioral Therapy is often the most effective approach to treating hypochondria & obsessive thoughts. Psychoeducation and exposure therapy have been used as well as treatment with antidepressant medications when warranted.