Anyone notice some weird effects on bpc157? Like random raging erections? Sometimes so bad they kind of hurt?

I've been pinning my right delt for a shoulder injury and it is getting better. I think I screwed up reconstituting my first vial(plunger sucked in the second I stuck it in the seal and hosed the product). I didn't feel like that vial worked, got bad headaches. Was injecting .2-.3ml. This time I was much more careful and got it reconstituted properly. Only pinning .1ml twice a day as a precaution and feeling results. Shoulder pain is nearly gone and I can press again with light weight.

Is it just me or does this stuff have an effect down there?

I've also read different things about pinning. Is it beneficial to inject near the injury site or does this stuff work regardless of where you inject? I've had to inject in my stomach twice due to my delt being sore(also on trt and the delt is one of my pin rotations).