I understand anger and I understand frustration. And when it involves your health, you have to figure out a way to deal with all this crap being thrown at you. If you've raised any kids, you already know what it's like to see them go through anger and frustration as they grow up, but you also already know (at least I hope) that we're supposed to help them through it and face it. Now, it's your turn to go through some challenges you may never have faced before.
I only know about diabetes. I'm 64 now (just had a birthday, Happy Birthday to me) and female so I don't know what it's like to experience prostatitis (Is this what you're talking about? ) (http://www.mayoclinic.com/health/prostatitis/DS00341 I also know about denial which I experienced when I was prescribed a meter as a "pre-diabetic".
Congratulations on losing the weight! You are probably insulin resistant which means your body still produces insulin but at the same time, your body is having difficulty using the insulin. This means there's glucose running around in your system causing high blood sugar and not entering the body's cells as they're supposed to. Insulin resistance results in higher than normal blood sugar and a tendency to put on weight, meaning carbohydrates cannot be metabolized correctly. And all this is actually called "pre-diabetes".
Metformin helps your body use the blood sugar running around by telling the cells to open up to use the blood sugar for energy as they're supposed to do. This will help control your blood sugar and also help you lose weight.
If a person lives with high blood sugar (even elevated blood sugar) for a long period of time, damage to the heart, eyes, kidneys, circulation can occur. How high the blood sugar has to be for this to happen depends on the individual. All this information is covered in the website I included in my first post.
Diet and exercise along with the Metformin will help you control your blood sugar. The fewer carbs you eat, the lower your blood sugar will be. The more regular, sustained exercise you do (like walking, jogging, biking, swimming), the lower the blood sugar will be. And - having more muscle tone will do this too which is why lifting weights and using resistance training is also excellent.
You can do all this. Do you have any family members with diabetes? This increases the probability in a person. (There is diabetes on my mother's side.) Knowing what your blood sugar is will help you know what food raises your blood sugar. This is why we use the meter.
Don't give up and don't be in denial. Learn all you can about your health and you'll find that you'll be a lot healthier. Ask any questions you need to.