Hello, your gums are most likely bleeding because of chronic inflammation and bacterial proliferation (if you do not suffer from an autoimmune disorder or are on psychiatric medications). There is good and bad news. Bad news is that chronic inflammation is the #1 cause of serious illnesses such as heart disease, stroke, liver disease and kidney diseases. Diabetes is also affected by this and vice versa. This bacteria has a tail that allows it to swim to different parts of the mouth which is why bleeding can be generalized, but it also has been found in the blood stream and inside coronary arteries that have calcifications. It is a very serious problem that most take lightly. The good news is that it can be controlled. If the problem has progressed to the bone, it will be a problem you will have to deal with for the rest of your life but it can be controlled and managed so that it does not worsen. You can get into remission which is the good news. You should see a dental provider ASAP. You are concerned enough to post this question, then you are in the right frame of mind to get this under control right away. Wish you the best.