I didnt read all the previous posts so im sure your question has been answered since there is a bunch of knowledgable guys here, but it can be alot of things like the amount of BA being used, hitting the wrong spot, injecting too much or injecting to much too fast... I find the best method is to inject slow, warm the plunger up before injection and rub the injected area for about a solid min after injection.
Bookmarks