I find that a lot of these disorders, especially along side with anxiety and depression, can be combinations of other disorders. For anxiety, there's General Anxiety Disorder, Panic Disorder, OCD, PTSD, and Social Anxiety Disorder. Chances are if you have one of the that latter 3, you will have some of the first two in most common cases.
I have Social Anxiety Disorder, without a fucking doubt. I didn't develop it until I was 24. I would get shallow breathing, heart palpitations, muscle tension, change of voice, no eye contact and be quiet in many social situations. It fucking sucks ass knowing that I have always been a very sociable person that is now blocked by this disorder. If it wasn't for me waiting tables, bar tending and hanging out with a lot of people, I would have very shitty social skills along with this. I keep it under control with Klonopin (Clonazepam) a benzo like Valium and Xanax. It doesn't fuck you up stupid like Xanax and it lasts longer than Valium.
It really does keep me from finishing college due to the class setting and keeps me from working other types of jobs other than restaurants. I just started to get therapy from a Psychologist who is a great guy, about a year ago. I am getting better as this is a disorder you have to expose yourself to the fear so to speak.
The one thing I think that is setting me back is drinking and smoking ciggs. They tend to feed my anxiety overall, but at the same time it alleviates while doing both. I know better, but have been doing it anyways. My social life revolves with drinking with coworkers and other friends. That is why I have been putting it off to quit.
So yeah, I have been doing something about it for the past year. I have cut down on drinking and smoking, and I am just going to quit it all together as it doesn't seem all that hard now. I even take minimal doses of my Klonopin as its side affects make me groggy and irritable at times.
This shit is no joke, it has taken away 5 years of my life. I am just glad I made it through a lot of it and will get better in time. It humbled my ass to having a high level of empathy and understanding of things. That is the only good thing from it I got.