Only reason why threads like this draw attention because a lot of people come here to seek refuge when they've stolen or done something bad at their store and need to see if what they did is punishable and how punishable by saying "oh my friend here is in trouble..." blah blah
I know you said yourself some ETLs and AP is suspicious of you stealing, but that's why you're getting some ridicule. Your leaders are throwing around highly sensitive information and that's not right, but if you truly have nothing to worry about then in all honesty I'd just blow it off. I can understand the anxiety behind it, I've been there before where I thought AP was gonna come talk to me about something but they never did.
You said you have some mental problems and weird behavior, obviously Target is a land of opportunity for everyone but if something draws attention to you, it will. I've seen some flow team members get so pissed off by the slightest thing they start cursing and man handling boxes and items and just acting erratically.
I've said it before in a previous thread, but it's best to try and leave any issues that will affect work productivity at home, but sometimes it's just impossible, it's how a brain works. Usually you'll get talked to if a TM notices or a Team lead notices and it's up to their discretion to interpret what they're seeing. We're here to help if you need advice or someone to talk to. Back to what Hardlinesmaster said, there might be some people just concerned with your performance or maybe you do something that looks suspicious(whatever it might be that you can do to look suspicious)
If you've heard TMs openly calling you a retard, or crazy, you need to start writing down specifics on a sheet of paper, Date, Time, What they said word for word, names of the TMs, and bring it to HR once you've got some instances to go off of. Hotline won't do any good because they'll just tell your ETL-HR and STL about it anyways.
OP said he's brand new seasonal, so he may not know the terms yet. I certainly didn't for a while.
I know OP probably won't post here ever again after this topic is done but, there are people here who will give you advice and someone to talk to if you feel a certain way.