I pretty much inject in my belly. Thats it. Sometimes in my thighs, but 90% of the time I do my belly. Never done the arms or my buttocks area. So far, no side effects. Yeah, I have site reactions on my tummy but as far as the negative side effects...None.
Now, I haven't had a liver test yet either????
The problem comes with the decision of weighing the unknown with the unknown.