I’m on day 9

I’ve had chest tightness, rapid heart rate and now I’m congested as hell(blowing snot out like a machine) and have the worst sore throat ever but don’t feel the dread of being sick. Then saw that could also be a side effect.

Does this ever get better? :( I’ve been off Zoloft for 5 years and my doc recommended me to start at 75mg. Why is it making me feel so shitty?