Almost the middle of Week 4 and no headaches or sides. Blood pressure was a little high yesterday but settled quickly! I'm getting more muscular and fuller and my legs are getting bigger also since I have been doing legs twice a week (strictly machine). I'm on a cut too by the way! My weight is continuing to go up and my abs are showing more everyday! Workout wise I'm getting stronger every week and I'm able to push a few more reps every set. The pump is INSANE! It hurts my skin most days lol! Also was walking through a gas station to grab a water and a few guys were watching me and heard one tell his friend "That guy is ****ing huge!!!" So the Osta is definitely working for me I would say! I took the past few days off from any kind of work due to vacation with family, did fasted cardio and abs this morning and was strong as hell! Going to be hitting Chest and Shoulder when I get back to town this evening along with some cardio... Should be awesome as every workout usually is! I have heard most guys feel the peak around week 4 and I have to say they were not bluffing!!! I will definitely run this cycle again in the future!