Well, maybe you don't know and have something called PVC. Premature Ventricular Contractions. I started having my heart skipping beats about 2 years ago....i was very scared until i studied by myself because docs don't know anything and discover what it is. It is not an illness or a phisiologic problem. It is just the frequency of the electrical impulses of the heart that are not going by the normal way. When this occurs?. In my case, if i take any kind of stimulant...caffeine, chocolate, ephedrine, drugs and mix it with lack of sleep and/or alcohol, tobacco, my heart start skipping beats the next day...it last about 5-8 hours and it is gone. Well, i was fine from some months ago...5 weeks ago started my cycle, test with dbol and in the nights and in the afternoons on the first 2 weeks my heart was skipping some beats...so my deduction was that they come from the stimulants like test and dbol. I lowered the dose, and waited til my body got a little used to it. Then i increased it again and now at week 5 i feel great...no problem at all.
So I think you have to adjust the dose first, wait until second week and then go increasing the dose. For some people the front load or the high dose from the beginning does not result. I got very helpful advices from good bros from here. They shared their experience with me. I'm trying to share mine with you. You'll be OK and don't worry. Just go easy.