Here is a question that might help if we get an answer. My main source is in russia....I thought I was taking sus250 and Enathate. Sus250 on monday and enathate wednesday and sus250 agian on saturday and so on.......but I was not feeling right so did a little research....my enathate is actually propinate, a much faster ester. Is this why I been feeling like shit every other day. I first thought it might be my workouts were to hard. Feel no energy the next day??? never happened to me before. Can my blood levels bother me that much???