here abdominal discomfort could be related to many things, like kidney stone, digestive system problem, bowel or bladder issue. We need to know other symptoms along with this what all problems are there? As well we need to do ultrasound scan for your abdomen. I suggest gynec doctor will help you out for this. for your back pain i suggest to check weather this pain is only at your back or its radiating from your back to your legs. If it is only at your back level then it could be because of weakness of back spinal muscles for this you can do hot water fomentation, with this you will have relaxing as well healing effect on your back muscles. Any time if you feel the pain at your back is increasing in terms of intensity as well as it is radiating down to your legs along with numbness i suggest to visit orthopedic doctor and take the mri scan and follow the treatment as per the report. As a physio i also suggest to visit a physiotherapist and take proper spinal exercise program which will help to improve strength and stamina of your back. here you can also take some physiotherapy treatment which will again help to have a relaxing and healing effect on your soft tissues as well it will also help to relieve acute pain at your back. take care