yup, very common, on almost every cycle I will feel at least one of the symptoms you have listed. You have to remember that this stuff is a foreign substance in your body and your body will react to it. Also, juice is known to weaken your immune system. Especially when it gets cold out, my joints ache, head hurts, I just always feel down until i'm under those weights. Just part of the game bro.
---PEACE---Mad Max