Flagyl and tongue

I think I got every side effect you could get with this nasty stuff. It manifested itself slowly so I wasn't sure if I was losing my mind or what! I've had metal mouth, nausea, bruising, furry tongue, and most of all just didn't feel right in the head. Couldn't communicate, panic attacks, crying for no real good reason. This stuff is awful!

I was in hospital for 16 days - no food no water - had flagyl and levaquin in IV form - i had pancreatitis - my gall bladder is fine - they did every test imaginable to me and gave no reason for the sudden flare-up of pancreatitis - i do not drink at all - my hubby is 27 years into his recovery = the meds made me feel really weird - like my tongue was dissolving like alka seltzer - my tongue was coated totally green- i kept vomiting and feeling so exhausted but i could not sleep - how can they fda approve drugs like this?

Tongue is furry as if i have oral thrust.