Hi noodles. Welcome to our little corner of 3FC.
This was my first kidney stone. I did go to the E.R. and yes, it's pain like you can't even imagine. I almost let my 14 year old drive me to the E.R. it was THAT BAD. But the drugs they give you there, they're pretty cool.

Mine had a little spike on it, and when the urologist saw it he said "Ow, bet that hurt coming out". Uh.. yeah.
I named him El Diablo. I'm waiting to hear what it was made of. Were yours calcium or uric acid? If it turns out to be uric acid, then I have gout on top of everything else.
My husband has gouty arthritis in his toes. Great, we can be the gout twins.
I haven't had too much trouble with the methotrexate since I switched to injectables, although I do itch like crazy at the injection sites, all the damn time.
So far the hair shedding has been minimal.
Hope my liver holds up!