When I get "off" my discharge is sometimes blood but not like a period. After that it goes away and I haven't gotten my period in six months?

Bloody Discharge. I think the discharge is probably normal but not having a cycle in 6 mo is not normal. Get a home pregnancy test. Also get into the doctor to get evaluated for the no periods.
Sounds serious. I do not have a clear picture of what you are describing, but I am very worried that you have a stricture of the uterine outlet that very much needs to be examined by a physician. Please forgive me if I have misunderstood.