Thyro-Up thyroid supplement

[shellbaby22]

I have a 9 yo Boston Terrier. She was diagnosed with hypothyroidism about 2yrs ago. At the time she was over weight, drinking a lot, sleeping a lot. She was put on Soloxine .2mg 2x a day. Did fine for about a year. The last year she has lost excessive weight (you can see her back bone and ribs) and stopped eating well. Her skin and hair are terrible, she is extremely lethargic. I took her off Soloxine and started her on an all natural thyroid supplement. 3 wks ago had her blood tested and her thyroid was low. Now she is on Thyro-Up supplement. She is very disoriented, her bag legs are wobbly, she can hardly hold her head up, not drinking much at all but is still urinating. I was wondering if anyone has used Thyro-Up and if there were any side effects. Thanks,

Michelle