Thank you for providing quick additional info.
The lumps you are having in back of neck is most probably because of a condition called as lipoma.It is a growth of fat cells in a thin, fibrous capsule usually found just below the skin.
Its exact cause is not known.Torso, neck and shoulder are the most common site.It is non cancerous.It is diagnosed by physical examination by your doctor.
In general,lipoma is left untreated because there is no known method of treating it and because it is harmless.So it do not generally require treatment.If it causes any discomfort like pain,tenderness,infection or if it increases in size,they can be removed surgically.
The gas,burping & GI issues you are having can be due to gastritis or GERD.It is a condition in which the esophagus becomes irritated or inflamed because of acid backing up from the stomach.
(Zantac) 150 mg twice a day.Take Pepto-Bismol 2tsf thrice a day after meals.It will help you greatly to treat the gas & burping symptoms.
Hope this helped.
My goal is to provide you with excellent service – if you feel you have gotten anything less, please reply back, I am happy to address follow-up questions.
Thank you for your business!