First, thoroughly check the literature about those medications that you took (are taking?), you wouldn't believe how much serious non written **** happens from prescribed meds. If you're still taking it, write me a PM, maybe I can help.
You seem to fear cancer/ tumors but if you had it and was non malignant/ treatable, you could get better and avoid surgey maybe? Stupid wildguess here just to show that it's too early to despair imo.
Your attitude towards surgery is correct, I had MRI that was read wrong both by the technician writing the report and by the specialist. Sometimes, health isues emerge from dumbest causes like drinking too much milk or resting the knee wrong or whatever. Take second (and third if necessary) opinion, weigh your options and ofc you can always do it. Keep in mind that while its best to avoid surgery if possible, most people get better from those medical procedures and you can have complications from eating salad.
Ignore the girls atm, start going to the mountains maybe? Not mt Logan or sth heh but some easy trails, low/ medium intensity workout in nature works wonders for body and mind, nothing better to clear the mind for sure and I checked all the options in life heh. Ask the doctor first though, might be a problem with raising pressure in the head but tbh, there is no condition that allows you to work but doesn't allow you to take a light trek.