Hi
The reptisun 10 is the best linear flourescent so as long as its under 6mos old and he can get within 6-8 inches of it he is good with that.How old is he?When you say D3 do you mean only that no calcium?Could you be more specific on this?If he is a baby or a juvie then he needs a calcium supplement with d3 5xper week for 1 feeding per day and a multivitamin 2xper week.I do not recommend using the all in one type supplements as there is always too much of one thing and not enough of another with the doses.The best thing to do is to get him back there for bloodwork and xrays,yes.There are other things that it could be or truthfully it could be nothing but the only way to know is to run a calcium panel and have a vet check his lungs.Is your vet a herp vet?Its not uncommon for non herp vet to misdiagnose so be careful on that.Just for your own referance:signs of MBD can be twitching,seizures,bone deformity or weakness and the signs of RI can be wheezing,clicking,crackling when breathing,excessive gaping,mucous in the nose or mout and lethargy.
-Vicky