So nearly four years ago I made the change from escitalopram to fluoxetine and I got some nasty side effects short term that then went away. For all the time I've been taking them though I remember sometiems getting these brain zaps. Although I'm not sure if they are brain zaps but it feels like a jolt in my head sometimes followed by short burst of lightheadedness or dizzy. MY head feels heavy during this and after.
I'm also having issues with taking deep breaths, I've used a health app on my phone to measure my o2 saturation levels and they are all over the place and usually kinda low.This has me worried about my lungs and sometimes if feels like I "forget" to breathe, that's sometimes when the zaps happen.
Is this a known thing to happen with this brand of SSRI? And am I still getting side effects even after all this time?
Also, how accurate are the phone sensors in the health apps for a regular person to be ne

What can I do?