Please have your Thyroid levels checked. Those are the same symptoms I had and found out in November of 2022 that I have Hashimoto’s with Hypothyroidism. My hair was falling out, I had low energy and terrible brain fog! If you have a. General Practitioner, ask them to do a Thyroid Panel and have your TSH, TPO Antibodies, T3-Free and T4-Free levels checked. I have a sneaky suspicion it’s your Thyroid and it’s probably low. Wishing you all the best.