Mild depression symptoms symptoms and conditions

I thought my fatigue and mild depression symptoms were something separate but after reading these posts, it sounds like they could be linked to taking Synthroid? I've been on it for 2 years now. At first, I felt great. I started feeling tired again & my dr. upped the dosage. I just saw him today & complained of feeling tired, depressed, and getting light-headed and off balance at times. He wrote me a Rx for anti-depressants and changed my blood pressure Rx. I'm thinking about trying a Naturopathic Dr. to see if I can get the results I need without all the side affects. It couldn't hurt to get another opinion.