hello mate goin on 4T is a mod so you get good advice, if it is the 400mg a ml compared to the 250/300 then this is why you are in pain, you are ok, it may get bad, very bad, glutes, onley poss... 400 mg a ml in a new spot first cycle, man can you still walk? i did my delt, never again! 9 out of 10 pain!! it will take a day or two before the real pain sets in, try ibuprofen it,s safe on cycle just, and is dam good fore muscle pain, na i do not think it is a infection or absces mate
400mg a ml, it,s fore rambo and Termanators .....