I’ve gained 20+ lbs and can’t lose it

Elly • Photographer. Artist.

I’ve always been skinny and usually I weigh around 110, but for some reason I’m up to 130 and I NEVER gain weight. I haven’t really changed my diet and I’ve always been active and I’m working out more now. My job also requires me to be on my feet so I don’t understand how I’ve gained this much. I also can’t seem to lose it. I’ll go down to 125 one day and the next I’ll be back up to 130. It makes no sense.

I’ve gotten blood work done too and my thyroid is normal and pretty much everything else except my iron was low but my doctor didn’t tell me to do anything about that.

What is going on? How can I lose this weight?