if you changed oils and got the same response- what makes you think you are allergic to what you're injecting? and if you believe you're allergic to it, why would going from subQ to IM even be a thought in your mind? the only other thing in there should be Benzyl Benzoate/Benzyl Alcohol- which if you are allergic to that, good luck. I can't imagine you'd be allergic to Test itself.
also, who is the manufacturer of the Test? the fact that you simply switched oils makes me feel like maybe this is Test from an UGL, not a pharmacy? if UGL, no need to name them as I don't think that's allowed here, just say "UGL". If it's an UGL I'd think maybe it is tainted.
how long have you been on the injections? if a short time, how many have you done?
please describe your exact injection process- include every step you take when it's time for an injection, from start to finish.