Sick(ish?) goat

Last night i found my 5 year old doe with a swollen jaw. I first noticed something was wrong with her when i was sitting by the shed and saw her squat as if to pee, and then get up, walk a bit and do the same thing. She squatted 3 or 4 times without anything coming out and went into their barn. I went to check on her and found her jaw very swollen. I separated her from the others and offered her water and hay, and later some grain. I didnt see her drink water, but i ran up to the shed to grab something and when i came back her chin was wet so i think she drank. She ate a little hay but was chewing really wierdly and loudly. I offered her grain and she sniffed it and turned away. This girl does NOT refuse grain. She is actually the reason i have to tie up all my goats to feed them grain, so obv something was wrong. Now this was like 9 o'clock, when i fed her at 6 she ate normal, i didnt notice if her jaw was swollen then or not but i was rushing and not really looking at her.

Well after a little while i noticed she was shaking slightly, and she was standing in a hunched position. WHen she chewed hay it was a really loud sound, and every now and then she would make a grinding sound, and idk if she was grinding her teeth, or just chewing her cud, cuz it kinda sounded the same as when she ate hay. I did see her pee twice, but it wasnt a lot either time. Then she was standing against the wall with her head in the corner and rocking back and forth. She was also breathing heavy. The vet came out, but couldnt figure out what was wrong so just gave her some pain killers.

She was wormed a week ago last Friday.
Her gums were a little paler than normal but not super pale.
The lump under her chin wasn't hard and she doesnt care if i touch it.
Her temp was normal, (103)
I didnt check her eyelids, (cuz i didnt know how) but her eyes def looked like she was sick.
Yesterday morning around 11 o'clock i sold her last kid. Her udder never filled up again after she left, my other doe, who i also sold her last kid had her udder fill up like normal last night, but Myrtles is still empty this morning. Its not hot to the touch, but actually maybe even a little cold.

This morning the swelling in her chin has gone down some. Her eyes dont look quite as droopy, but she is still standing in the hunched position and shaking. It looks like she drank a little water and she was eating some hay when i checked on her but she still didnt want grain.

Now.. the vet didnt know what was wrong. They said that she kinda looked depressed and they could tell she didnt feel good. Is it cuz her kid is gone? She didnt care at all when i sold her buckling 2 months ago, but maybe now that they're both gone? and that doesnt really explain her swollen chin. If anyone has any suggestions on what it might be or anything i can do for her plz lmk.

Tysm!