A study involved 36 outpatients who had GI reflux symptoms reported having night sweats;80% of the the 24 patients had frequent night sweats reported having GI reflux symptoms .With appropriate treatment for the GI reflux,all had relief of night sweats. However it may not be easy to generalize these results due to possible bias.
Another study conducted in 100 hospice patients with cancer,16 reported sweating,mostly occur at night;sweating did not correlate with tumor type,pain, or medication use.
Malignancy(soliod tumors and lymphoma etc), infection (tuberculosis, HIV, endocarditis).
Medications(OTC medications such as tylenol,advil,Aleve and migraine medications such as Zomag and Imitrex and Maxalt;blood pressure pills like diltiazem,Tizac -those calcium channel blockers and beta blockers like propranolol,metoprolol and atenolol).
Endocrine causes(thyroid,diabetic) ,neurologic disease(stroke,spinal injury, autonomic neuropathy),menopause and idiopathic hyperhidrosis are possible causes and diagnosis for night sweat.
Antipressants are perhaps the most common medication-related cause of sweating.
God Bless.