Push your T to hear you. This is not something dismisable! Your body is warning you now what you're doing isn't healthy, so take it's warning. Maybe you can get him to see you earlier. I really hope you can sort this out. : ( Don't let him dismiss it, describe that it may have started out SI related, but it's escalated and it's becoming a weight/body obsession.

If he won't heed what you have to say, go find someone else.