thanks for the advice..i should let u guys know that i was taking p-plex and bold at the same time for about four days. I dont think that i have ever felt as tired as i did this past week. it was a very easy work schedule this week 7-3 mon thru fri. I only lifted mon, hurt my back tue. so i did not want to hurt myself further. I would come home and go straight to sleep. Stopped bold on thur and im finally starting to get my energy back. I'm pretty sure the bold is related to my lethargic week. any thoughts?