$1Im sorry to hear this, thats so fucked up im sorry. But something is definitely wrong.
For needed money for bills, apply for CUP fund, which is there for partner in need of disastrous events/life changing, like your bakeracts/hospitalization, following your current situation. They will then issue money to help out
As for dealing with everything else, trying arranging a time to discuss this with your old store manager, and if that does nothing, go to your district manager and have them look into it. Also ask Sedgwick for documentation stating you went on a LOA, so of they trying putting this off, you have your proof. I attached a link, go to page 8 and it gives a list of numbers.
And this is what i did personally when i was in a similar situation, i talked to the hospital and my psychiatrist and asked for Short term disability, so you have time to recover and work on yourself, while getting paid
Again, im so sorry this is happening, but im always here to talk, whether its more info about what i said, in general about whats going on, or if you need someone to chat and have a good time, im here. I hope this helped :)
$1