I've been on MK for around 6 weeks now and been very sensitive to sides starting out so gone with incremental dose increases. For over a week I've been up to 25mg and no real sides now apart from numb hands at times. Thing is I've been getting ridiculous pumps training, great right? Not completely, I don't mind the burning pain and generally my stance on pumps is blimps are cool but it's at the point where I'm failing to get my reps not due to muscle fatigue but rather the pump itself. Worst in my shoulders and arms. Exercises such as bench presses and bent over rows my shoulders will blow up and in short order my movements freeze up. Squats are another problem with severe lower back and calf pumps (I normally don't get pumped calves) I'm utilizing rest pause training to complete sets and have thrown in 5g Taurine PWO which isn't of much benefit thus far. Quite frankly I'm wondering if I have a circulatory problem and should get checked out. Curious if MK677 will cause excessive pumps. In addition to MK I'm taking GW501516, Ashwagandha (900mg) SNS Inhibit E and Reduce XT ED in the case they may cause aforementioned side effect?