Thank you for using JustAnswer Health,
I am sorry that the last experience with your psychiatrist was not helpful. I always encourage people to 'shop' for a health care provider, especially a psychiatrist and psychotherapist or counselors, because this is an area where you need to 'click' and have at least some sort of similar value system or comfort level. Also, it is important to be aware that most psychiatrist today prescribe medication as their main intervention. A good psychiatrist, if not doing therapy themselves (which most do not today, as insurance reimburses them for medication management only and expects therapy to be done by Master's and PhD clinicians) should refer you to a therapist, although they will often be work side by side with them in the same office. Medication alone is just a bandaid and can help in certain ways, but alone is typically not enough.
The symptoms you describe sound like a low stress
tolerance and anxiety
, which typically leads or occurs along with depression, but if you have not seen your regular physician in some time, it is important that you be evaluated for medical causes of your symptoms such as hypothyroidism, as it can cause similar symptoms. The light-headedness could be due to blood pressure elevation, or other physical problems.
As we age certain hormones and neurotransmitters may decrease in our bodies and brain. We all know that estrogen and testosterone decrease in production as we age. Well, recent studies have also shown that in many people certain neurotransmitters like serotonin (the mood elevating neurotransmitter) also often decrease in the brains of people as they age. In these individuals long term antidepressant medication is required.
If all medical causes are ruled out, then the best treatment for depression (as shown by research) is a combination of cognitive behavioral therapy and medication. Medication alone is rarely completely successful.
Of course there are many other factors to look at - are you getting enough sleep; do you have activities in your life that are meaningful for you; are you getting adequate exercise (regular physical exercise not only decreases the stress hormones than can create anxiety and depression over time, but also creates endorphens (our body's natural pain killer and 'feel good' neurotransmitter). These and many other factors influence are mood and ability to handle stress.
A very good reference to learn more about how to cope with aging and emotional health is this not for profit website: http://helpguide.org/
I encourage you to take advantage of it's resources which are completely free.
I hope this information is helpful, but feel free to reply to this post so that I can continue to assist you if you have further questions.