I've been there mate and it's NOTHING to be ashamed of, i tell anyone and everyone!!
It crept up on me, both anxiety and depression.
I could feel my heart beating/thumping out of my chest, sweats all the time, in meetings it felt as is i was not in the room and i was just keeping under control....I then had a MASSIVE panic attack just whilst walking to a breakdown i work...
I thought there was something physically wrong with me, as o thought it could NEVER affect me! I was running/cycling/swimming/walking/takig multi vits, natural anti-depressants etc...NOTHING worked..
Then i found the answer -DRINK, it got rid of the anxiety and i felt happier, 4 cans a night, then 8 cans, then a flagon then two....For over a year
I was the getting MUCH worse as you can imagine, first thing from work and straight to nearest shop buy a flagon and neck back a bit to feel 'normal'
To cut a long story short basically i never turned up for work, locked myself in the house and was found a week later by a family member in hell of a mess (who was lickily a MH worker)..
Straight to Dr's, the direst to MH unit, diagnosed with severe depression/bipolar, given meds and 3 months off work.
I tried loads until i found what worked (give ANY med 6 weeks at LEAST)...
I also spent a 2 weeks in private rehab in between this.
I am now FINE after finding what meds work for me, it's a long journey and i look back and think WHY did i let it go on for so long!!!
Get down the Dr's and have a chat and go from there mate..
Good luck and ANY questions feel free to inbox me..