I Have Always Had A Propensity To Burping But Over

I have always had a propensity to burping But over the last seven days this has become fairly constant and extremely uncomfortable coupled with a bloated feeling.Last weekend I felt lethargic and could fall asleep at any opportunity.I have also a slight ache in my lower back most of the time .The problem is at its least obvious when i am in bed at night and does not prevent me from sleeping.