Hi, I miss 28 years old, planning for pregnancy, I have been diagnosed with pcod (initial stages affecting my follicular) and also thyroid 6.59 tsh level. I have had few episodes of svt since past. Doctor has given me thyronorm 25 mg, b long for tablet, pco care tablet and calcirol powder. But since started the medicine having constipation, gas issue, acidity n stool after eating meals in gradual form. Doctor is saying to replace b long with vitagreat tablet. I wanted to make sure before switching medicine as I am suffering since 2 weeks and don't want the continuous stomach upset problem since I have a hectic work life. Please advise.