I just started a test and deca cycle. I'm running test e 500mg and deca 500mg a week. First pin was 4 days ago. I understand that the long esters I'm running takes 3-4 weeks until it starts to take effect. I'm experiencing headaches and I'm not sure why. I know my body pretty well and with that being said I believe it's the gear. I'm confident the gear is gtg. I'm just wondering why theses headaches are occurring. Any insight on this would be greatly appreciated. #Natron