how can you tell the diffrence between deficient Adrenal vs. deficient Thyroids(Hypo)?

Answer 1

Usually you will be tired all the time, but will get very tired right after stress (physical or emotional) with hypoadrenal. Hypothyroid you will feel tired pretty much all the time and hair falls out. If you have both problems you likely have a pituitary problem and need to have it checked out.

Answer 2

Blood test will be simple way. Symptoms could be overlapping and will anyway need tests.