Suggest Treatment For Pain In Lower Pelvic Area

Question: I have a dull achy pain in my lower left pelvic area that comes and goes mainly. Sometimes this dull pain is accompany by left testicle pain same thing a dull achy pain and lower left hip pain. I also have acid reflux and I do smoke and I was drinking 6 beers a day usually 3 times a week. Could this be ibs? Do you think it's something serious? I also have in my stomach area pain that isn't dull more moderate pain that comes and goes. When I burp or have gas in my chest or stomach area I put my hand on my stomach and on my lower left side towards the bottom of my abdomen and I feel the gas goes right to those areas. Can you please leave me detailed feedback. Also, once in awhile I have a dull achy feeling in my lower left back and sometimes the pain is in my hip and testcile area at the same time. I'm worried since I do have mild acid reflux and I been drinking a lot and smoking do you think this can be cancer or a kidney problem? I did quick drinking recently and have noticed I don't have as much gas or bloating as much. I do get nausea sometimes but that can be from me stopping drinking. The main problem I am having is that dull achy pain to the right of my left hip so it's right in my lower pelvic area under my belly bottom to the left of the belly button only on the left side of the pelvic area so that would be right above my left testicle.