Heart Palpatations/Severe Anxiety

I bought this at my local gnc about 1 month ago. After my first use, I experienced severe anxiety, I decided to give it another try the next day and experienced heart palpitations, couldn't catch my breath, tight chest for a an entire day, I thought I was having a heart attack. Before this workout I used c4 original diligently for 5+ years. I NEVER experienced this with c4. I am writing this to warn people. It's been a month and I still do not feel okay. I get random anxiety attacks throughout the day since taking this pre workout. I truly wish I had never tried it.

I'd repurchase

I was hesitant to try the sour watermelon flavor, but I am glad that I did. Really tasty and I get a good energy boost from it. It does make me itch, for those who don't like that feeling maybe get the non-stim version.

Raw!!

Great product. Taste great and very effective.

Great beginner pre workout, decent pump too

Good minimialist pre

Good flavor and mixability

Great pump, great flavor and affordable

Great taste and effective

Best tasting pre workout I have tried and very effective with not too much caffeine. I like the addition of pink Himalayan salts for a little bit of electrolytes since I start off the day working out/drinking this. Great supplement and good price at GNC and easy same day pickup.

Awesome!

Tastes like the red Starburst!

Highly Recommend

Good overall

I like it it allowed me to build up how many scoops I take - the flavor is good too and tolerable

Flavor is good, price is reasonable.

Wow!!!

Awesome pre. I'm a pre junky and this is one of the best ones I've tried within the past year. As far as pump goes, crazy. Caffeine hits just right. And flavor is great. The price is amazing too. Can't beat this!