I was right in my thinking, the pains in all my muscles was due to a very bad Flu & not due to using f-6 witch has helped me with symptom's that no other product has so far, I am still with this flu but will post my progress in time. I would like to add what F-6 for the short time I used it & results, fungus white patches gone, fuzz balls from body & scalp gone, my natural skin being revealed, since I started F-6 I did notice this, for the 1st time in 7 years my skin actually felt clean! I am not using any other product to get these results, so far for the 1st time I feel I have some hope.