Infections like sinusitis, pharyngitis, or other upper respiratory infections are an important cause of night sweats. Other causes include tuberculosis, bacterial infections, abscesses, osteomyelitis, hormone disorders like carcinoid syndrome and hypothyroidism, hypoglycemia (low blood glucose) and some neurologic conditions like strokes, autonomic neuropathy. Medications like aspirin, acetaminophen, niacin, tamoxifen and Viagra can sometimes cause night sweats.
Keeping the bedroom cool can help with night sweats. Also, keeping ice water and a fan by the bed will help ease any episodes you get. Exercise can help with night sweats as well. Exercise raises endorphin levels, aids the hypothalamus, and decreases LH and FSH - all of which helps you avoid night sweats. Try to be stress and anxiety free before going to bed.
In case the symptoms worsen then get your thyroid hormones evaluated and consult a physician.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.