yup. when i was in a mental hospital, they cycled me through new meds almost every week. i felt like a different person every med change i had, it was awful. the medicines they put me on didn't even work because it takes about a month for the full effects to kick in.
i've heard prozac has been really unstable for most people as well. medicines in general feel like a scam, but i suppose they can help people. it's all about "finding what works for you", which for me, has taken years and is still ongoing. i'd say my worst medicine experience is when i was weaning off of an SNRI. i was very sick and sensitive to everything for about 2 weeks, it felt like hell at the time.
and of course SSRI's numbed me to all hell... to the point when i got off of them i had to relearn all of my emotions and how to deal with them.
tldr: medicines suck. you're not alone.