Thanks ladies,

I am not sure about the heart rate stuff and chore body temp stuff as I tend to heat up quickly and sweat really bad (like a horse) I have just started a medium pace walk around the paddocks taking it easy up the hills its nice actually because my horses follow me which is lovely company.

I have decided to talk to my ob about it and see what he suggests also as i carry quite a number of sporting injuries which under any excess weight flare up.

Cheers for all the responses.
Nae x