I can see from your description that you have many troubling concerns in your life. As time goes on and you aren't able to overcome them, you focus on them even more. It's probably too much for you to handle on your own, and the best approach really would be to see a therapist. Please see your doctor as soon as you can, and talk with him or her very honestly about your concerns, and he or she may see a need to refer you to a therapist. If your doctor thinks that medication may help you, he or she may prescribe it or may prefer to have you see a psychiatrist. Whenever our concerns become overwhelming, it's best to see an expert, and that is what a psychiatrist is: an expert in helping with emotional problems. A therapist is an expert in helping you talk through your issues and learn different ways of coping. It's always difficult to care deeply about someone who doesn't return our feelings, and speaking with your doctor and a therapist can help you through such difficulties. If you are worried about having a psychiatric condition, please try to look at it in a new way: if you had a broken leg, you would have a doctor evaluate it and provide the right treatment. Having a "broken" emotion or emotional concern is no different; you would see the doctor to have it evaluated, and a therapist is part of the treatment. I very much hope this is helpful to you.
Good luck to you.
Faye, RN, MSW