Started taking these Wednesday night. Yesterday I was so tired and dizzy I couldn't go out. Took another last night and today has been awful - girl I am carer for was frantic this morning as she couldn't wake me up, I couldn't take her to her usual sports activities, I have been very dizzy all day, losing my balance frequently and unable to stand unsupported, fell sound asleep this afternoon and managed to bite through my tongue. No more - these things are being returned to chemists for disposal - I have put up with the pain for over 3 years so will continue to do so. Ah well, back to the drawing board - once I am steady enough on my feet to reach it that is.