Thanks guys for the speedy replies and advise. I am very grateful.
I think my muscles are just weak and will have to get a whole lot stronger

I've just finished the second week of Insanity and lost 7lbs so far. Insanity & My Fitness Pal (iPhone App) has changed my whole out look on food and exercise. It's the most positive thing i've done in my life for a long time!
Thanks again guys!
Mike