I'm not sure I agree with your standpoint on mental illnesses not existing. I have had pretty palpable depressions and I definitely feel that they are an illness on many different levels. Also I have seen people with mental problems which I wouldn't know how else to define, other than mentally disturbed.
Now of course I really don't know if modern psychiatry is the best way to treat these perturbations of our minds/bodies/souls. I suspect it isn't. I suspect that a holistic approach would do more in some cases, but in some there is probably not much to be done. You would have to ask someone more involved in the field. I'm really just speculating.
If you don't want to go to a psychologist - a decision I can understand though don't necessarily recommend - but you want to fix yourself, you can try a holistic approach yourself. Body, mind and spirit need to be healthy. For the body you can exercise. Try to work up a sweat at least three times a week. Do something with your nutrition, also. Even if you think you are living healthily, try changing to a different diet for some time, like leave away refined sugars, meat, etc.
For your spirit you can practice yoga/thai chi/chi gong and or meditation. For your mind you can look for stimulating books to read or try to learn something new - like a musical instrument, a new language or a craft, your favorite branch of mathematics... Even if it all feels unreal, perhaps you can force yourself to go along with it anyway.
Perhaps you won't get rid of this feeling like this, but maybe you can learn to live with it in a somehow manageable way. Changing your inner ballance like this is a slow process which can take many weeks. And, even if it does not help your situation, at least you are certainly not doing anything bad to yourself.
Also, if you have any suspicion that your problem may result from a more organic level, try a different doctor and insist a little that they do the proper tests. Now a days it's very common for doctors to do routine tests that don't find anything wrong with you, even though there might be. If your issues get worse, I would recommend seeing a psychologist, but you have the right to be picky about them. Don't settle for the first one you go to, if you don't feel like he can help you. Look for one that seems to want to help. There are people out there that do this job out of vocation and really do want to help their patients. It's worth a shot - after all you will only be losing a little bit of your time and might come out with new insights about how to make yourself whole again.
Buon viso a cattivo gioco!
---
The Open Hyperspace Traveler Handbook - A handbook for the safe and responsible use of entheogens. ---
mushroom-grow-help :::
energy conserving caapi extraction