I have compulsive and obsessions of negative emotions, intrusive thoughts. Should I get treated for "impulsivity"?

Not the same. Although "impulsive: and "compulsive" sound similar, they have completely different meanings. In one sense they may even be considered the opposite. You may be having a problem in the obsessive-compulsive spectrum, but it sounds like clinical (major) depression is a definite possibility as well. I recommend that you obtain an evaluation from a qualified professional for a more accurate diagnosis.
You should have. An evaluation by a family doctor first and if medically cleared, you should be evaluated by a psychiatrst in your area!