Muscle Tech's pro series pre workout - Feedback

[dmosley]

I have been taking pre-workout supplements for some time now and in the past i have taken Cellucor's C4, Cellucor's C4 Mass, and Optimum Nurtition Platinum Pre. I decided to take a break from pre-workout supplements and naturally boost my hormones by squatting everyday. As a christmas gift this year i was given Muscle Tech Pro Series Neurocore Pre-Workout. The pumps are solid, the mind muscle connection has improved but not significantly, and my energy is through the roof.

PROBLEM!
For the first time ever with a pre-workout supplement i begin to feel sick when ever i lift heavy or with intensity (not to full recovery). I wanted to know if anyone was having this problem. I am open to suggestions and feedback.

[emergency]

so you are only having issues when lifitng heavy or doing intense training? have you ever had this issue in the past? if that is the case I would dial back the dose and know your limitiations when it comes to going heavy