I went for three years also being diagnosed with depression or being told that I was fine just overworked, etc. I wanted to throw the bottle of antidepressants at the doctor because of how they made me feel. At first they could not see the tremor in my hands. My handwriting had changed. I had one shoe wear out on one side (which was new), and I fell down all over Italy and I could never figure out what I tripped on. (Must have tripped over my own naivete...lol). I had unreasonable fears, and my heart would race. I kept telling my doctor I felt "like I was dying", and I know I shocked him. But I couldn't describe my feelings until I went onto the internet... The next time I saw my doctor he got mad and said, "...Okay! So WHAT IS IT YOU THINK YOU HAVE??". He wasn't prepared for the perfectly logical recitation of my symptoms and the shock at how could now see them so clearly. When I was done he just said, "So do I". He wrote me the referral to the best Parkinson's specialist in town and they diagnosed me in 12 minutes. I was 39 years old.
YOU know yourself the best. Don't lose faith. The truth will set you free - free to find some treatment and relief. Good luck and God Bless. Redbird.