Thank you Gayle and Fuzzybear

Onward, thanks for the idea. I scanned webmd and drugs.com Reviews (I have problems reading with my double vision), but found most reviewers are relatively new to the med - I have been taking it for over 3 years - and few talk about increased doses.

I have to talk to my GP again in a couple of weeks, if this state continues I will have to discuss it with her - earlier if the deterioration continues.

Dave.