Thank you both for replying; you've actually covered both of my suspicions really.
I did wonder whether I was absorbing the gel, however overall I do feel much better on the gel than I did the patches.
Just before moving to O/U I had been on Evorel sequi but my headaches had started to creep back in and as I felt better in the conti part of the pack, my GP suggested moving to Conti but the headaches etc continued. I was so frustrated with it all I agreed to stay off HRT to see how I was on my own, but by the end of 2 weeks I felt so awful as all my symptoms returned so quickly I begged to have HRT back! it was pretty shocking really.
I had a scan in December last year after a few weeks of extra bleeds on my sequi regime and all was well at the time. This is what is worrying me, Sheila, that I didn't shed very much at all on that one single bleed and I am frightened things would build up. Since being on the gel I went from 2 to 3 pumps in the first month and presumed the extra oestrogen would bring on a bleed but that hasn't happened.