Feeling weak and giddy. Problem with me?

I was diagnosed with Diabetes in 2005. I was on glador 1 mg. For the past 5 years I have been taking Metformin 500 mg BD, Vildaglyptin 50 mg BD, and Telmisartan H 40 BD for hypertension. Recently my sugar levels were elevated. Doctors prescribed 1000 mg Metformin BD and Voglibose in addition to the above. I also am taking BGR-34 4 tablets a day daily for one month now. I take statins and clonazepam for anxiety. I live alone and have no much control over what I eat because I have to depend on outside food. My job though sedentary is stressful and so is my personal life. Of late I feel no desire to eat and digestion is very bad and there is bloating. I take patoprazole 40 mg and Domperidone 10 mg once daily. there is a persistent chronic pain in one shoulder. Most importantly, I feel terribly weak and dizzy. I am unable to think clearly and am always stressed. Zero exercise tolerance. Darkness before the eyes. What is the problem with me?