Test E 250mg

Every time I hit myself with Test E 250mg no matter where the location the next day I swell up and it's sore for about 3 days. It only happens when I use 250 mg.. every time I use 200 mg don't have a problem with it I'm heading myself up twice a week a kind of sucks... does anybody else have this problem? Is it just that the dose is 250 mg is that why it's happening? Answers please

Different carrier oil or solvent causing a reaction. It's common with higher concentration gear that's brewed with cutting corners.