Here is the thing, if when you wear spandex it looks like a garbage bag full of oatmeal under pressure then obviously that garment was not intended for you. So do us all a favor and choose something a little less revealing, I don’t know, like a burqa. It seems obvious to me that is who they were made for.
This is also unacceptable…. and you are probably losing circulation and you might eventually need to have your butt amputated.