Hello! Thank you for your question on HCM! Regarding your concern, your symptoms seem to be related to a chronic infection or to a metabolic disorder (a hormonal imbalance or a vitamin deficiency). I would like to know your age and your past medical history. Have you measured your body temperature during the episodes of shaking and sweating? I recommend consulting with the GP and performing a careful physical examination, a routine blood test, blood sugar, inflammation tests (fibrinogen, PCR, sedimentation), kidney and liver function tests, blood electrolytes, cortisol and thyroid hormone plasma levels, to try to find any possible cause. Further specific tests for infection diseases ( like HIV, Wright, Widal , Lyme, etc) may be necessary to exclude any possible cause if suspicions are raised by the above tests. Hope to have been helpful! Best regards, Dr. Iliri