balls sore after taking N2amp and Ntkts

[mikefan1034]

So i took N2 amp as a stand alone and loved the the pumps but it just screwed with my sleeping patterns and caused shortness of breath, therefore I got off of it. I then tried NTKTS and the energy from it was amazing. I only took N2 Amp as a stand alone 4-5 times and NTKTS like 3 times so far. I am not on any cycles or anything, just taking pre workouts and protein. I just took a couple days off from the NTKTS and now my balls are sore and sensitive to touch. It mostly my right testicle. Is this normal?