IVF put on hold

Hello ladies just wanted to update you all. My IVF cycle is going to be put on hold as my new RE learned that I have low blood, a thyroid issue and my sugar levels are elevated. So they put me on an iron supplement, Thyroid medication and metformin.
Im just alittle curious as to why my other RE did not locate know that I had all of this going on. I am also curious to know where all of this came about as I never had an issue with any of this before. Do you ladies think these issues could have been the reason as to why my last 2 FET cycles did not work.
Well I am off to go walking. I am definitly changing my eating habits and starting to exercise as of today.