Negative thinking and depression are a vicious cycle. I have suffered with both for years and realized that the part of my depression that wasn't chemically based could be controlled by learning to think more positively. This article helped me a lot:
http://hubpages.com/hub/How-to-Stop-Negative-Thinking
i understand what your saying mammo but like i cant go to a psychiatrist or do therpy casue i wouldnt be able to afford and i have no1 to help me pay for it so that is outta the question i think...and over the last couple yrs ive been going to my family dr so much cause ive have problems with my knee and now my oblique muscle and really if i keep going there for diffrent problems i have a feeling they jus going to think im a cry baby or sumthing..and even if i did get medication i have a feeling it wont work for me casue i will be honest i have had alot of thoughts about killing my self so i really dont know what to do
To answer your question "will depression make me sick?" Yes depression will make you sick. Depression is an illness itself and it's symptoms are frequently physical sickness. The most common are the ones you are already experiencing. For me the bad physical sickness is what made me sad and filled with 'gloom and doom'. If I weren't physicallly sick because of it, I would be happy and positive. Everyone gets 'down' or sad and depressed over things that happen in the course of life, it's normal. But Depressive disorder is different.
Life events may triggeri it off but our body's reaction to lifes stressors is entirely different and we need help with it. Mammo's suggestions above will help you out a great deal.
Let us know how you make out.