Also i had postpartum thyroiditis that caused distressing symptoms.. my levels apparently are in normal range now. is it possible to still experience symptoms from it ?

Posts on this site are never linked, and this one looks like a follow-up to another post. As written it does not have enough data for a reasoned answer. You are welcome to start over with background information and a description of what symptoms concern you.

It is not feasible to provide a meaningful opinion without additional history, physical examination and may be some tests. It would have helped had you described your symptoms. Talk to your doctor, you may be depressed. In the meantime, start exercising. Begin with low intensity exercise such as walking and gradually increase the intensity so that you sweat profusely. It may take time to improve.