Can a hypochondriac give them self symptons?

I suffer from depression anxiety and panic attacks and have done for a couple of years now. I started taking a small dose of sertaline a week ago and in 2 days I have to up my dose to 50mg. I'm becoming a hypochondriac and every ache and pain I get I think its cancer or I'm gonna die... I'm short sighted and I don't wear my glasses which causes my eyes to strain, my jaw sometimes clicks when I chew, I had a cold recently and still got a bit of a runny nose and It's kinda blocked. I also sometimes get sharp or dull pains in my head, I automatically think its a brain tumor and google symptons of absolutely everything. Don't say go see a doctor can you please just give me some advice or something? Am I being stupid? Am I getting these head pains because I don't wear my glasses? Could my anxiety depression and panic attacks be causing me to be a hypochondriac and if I keep googleing symptons could my brain convince my body to start having the symptons? Any answers will be useful. Thank you!! :(