Weak front legs

by Karen
(Wales)

I have a male hermanns spur thigh tortoise 4 years old who hasn't hibernated this winter. He mainly feeds on fresh veg and he is eating what he normally eats (he doesn't have fruit in his diet only very occasionaly) and we don't have a problem. He wont eat the dried tortoise pellets (have tried soaking them but he still won't eat it). He is active, trotting around and climbing but eating only small amounts, has runny faeces and his front legs seem to be weak. His back legs are strong and he starts off walking fine with his front legs but quickly ends up walking with his front legs kind of pulled in and pushing himself around by his back legs. Our heat lamp has broken and we are waiting for a replacement, so is lack of heat the problem? He seemed ok until I gave him a bath and used warm water to warm him up. Up until then he would trot miles. Now, I can tell he wants to but stops after a short period. Can you shed any light on his problem. There is no sign of worms or undigested food in his stools, its just runny poo.