I used to binge eat a lot and I do suffer from overeating disorder sometimes.
The overeating disorder has not been a problem in the last 5 to 6 months which is fine with me because its quite annoying.
Not sure why the urge hit so hard but it did.
I ate almost an entire red velvet cake which is really odd for me because I am not much on cake of any kind.
I woke up this morning with a hunger I have not felt in a while and just continued to eat all day.
Knowing I couldn't really be hungry I kept cramming food in my mouth.

I got the urge to stuff myself to the point I felt like I would explode.
I haven't eaten this much in a long time and I am literally sitting here with a rock hard belly and can barely move.
I have tried so hard not to eat a lot the last 5 or 6 months and maintain but today felt so good to eat with reckless abandon.

Lots of truth to that because at one time I lost 150 or so lbs and when I gained it all back all my fat went to my belly.
That was ok but when I lost a bit and gained it back a second time I was much flabbier and much heavier than I was before.

See what I mean you have a fantasy about it but worry what others will think.
If you really wanted to gain weight those things would not matter so much.
Best to leave it a fantasy.

What I gather by your post is you have no idea what you want to do.
You have a fantasy but not the will to actually do it.

have a bowl of ice cream right before bed and let the calories work while you sleep.
Thats what I did when I would hit a plateau.

What a cute story.

I had calcium build up in my ankles and its was very painful.
I had to loose over 100 pounds before they would operate on me.
Got one done and healed up then they did the other one.
I was still over 200 pounds at the time but healing wasn't to bad or too long.
If I had still been 375+ healing would have been much harder.

I'm short too and as I was gaining the first time people really didn't say anything besides my Mother and she still gets on me about my weight even tho I have lost a bunch.
I started at 115 and really didn't have many comments until I passed 200 lbs.
By that time I had thick thighs and a wide butt.
Love handles too

Depends on your body and how it reacts.
If you don't gain easily I would suspect 20 lbs will be hard to attain in 2 months.