Thanks guys, we're happy that radioactive iodine treatment is the best option for him. our vet has reccommended the wetherby centre and had suggested RI before stabilising him as he was losing weight so quickly. It would be a risk as its preferred to stabilise them before treatment to check the kidney function. Louey doesnt have anything wrong with him that would exclude him from RI treatment (like a heart condition) so it would be our call...However...
when we took louey into the vets last wednesday he was enough of a concern that we decided to admit him on a drip and ranatadine for a few days in a climate controlled cattery to try to get him eating again, which has fortunately worked
and he is now eating again and has stopped losing weight...his cough is still a mystery as he didnt cough at all while at the vets
so it may be hayfever or asthma...or nausea from the hyperthyroid But while it isnt getting worse we (Vet and us) are currently thinking to park investigating that until he is stable and concentrate on getting his weight up and thyroid levels right so he can have the RI treatment.
The weather has been cooler this week but weve got some max/min thermometers to keep an eye on the temperature in the house and and we found a personal cooler on amazon which does actually work quite well to cool down a small space so fingers crossed!