Many of us have multiple dx. I'm bipolar II (heavy on the depression like you), OCD, and GAD. Thyroid problems can sometimes read as bipolar so being sure to have that ruled out as a cause for the mood problems is good. It is also very possible that you could be bipolar, GAD, and have thyroid issues. It sounds like you are very confused right now and having a good pdoc and being open and honest with them is very important.