Could it be that you were poorly hydrating yourself before and now you are drinking alot more water? That will do it (the strength part).
Are are you working out at a different time of day than you used to?
That was the first thing my doctor told me. Drink more water. He said i wasn't getting in enough. so i was drinking so much friggin water i was pissing every 30 minutes. i did that for over 2 weeks and they hadn't cleared a bit. Testosterone itself can cause your sebacaucus glands to become overactive. Basically the more you train the more Test you make and for some like me...that = overactive sebacaucus glands which cuases back acne.
Also helpful is Benzoyl Peroxide (10%) wash. That's what my doc prescribed to me. This, in combination with topical Retin-A Micro, has eradicated the acne vulgaris (that's the name for back/shoulder acne) I once had. You can try Minocycline as well, if need be. However, I'd try to stick with the topicals and washes, at least in the early going.
That retin-a stuff does a serious number on my skin. whoa it turns my pimples into legions that look worse than the acne. It flattens them but leaves a red legion for about a week. I tried that stuff. Not for me. So far Plexion is the easiest and most effective for me.
If anyone does try the plexion wash post your results. I would like to hear how it does on someone else. Thanks
Scaggs