Do I have post traumatic stress syndrome?

My Family Dr. think's so,but he want's to send me to a shrink to verify,My mother died suddenly when I was 11,I burried the pain of losing her deep inside my heart and also started drinking heavily at the age of 11,I turned into a alcoholic by the time I was 13,I had a major car accident at 20 years old and the girl was decapitated,her head landed in my lap,I wasnt drinking when the wreck happened,instead of seeking counseling I began a serious ride with the booze just to keep away the memories,I have been sober now for years,Im almost 50 and I still have major nightmares about both my mom and the car wreck,I have more anxiety than anyone I know,I feel so guilty and severe depression every day,will this ever stop,or do I have to be on medicine for the rest of my life,I will never be me again.Please dont judge me for my mistakes,just give me some peace of mind if possible.