Thanks for your question
If you have intermittently raised blood pressure with these symptoms- consider pheochromocytoma
, if persistent raised bp, consider conn's syndrome
If you have intermittently low blood pressure- consider carcinoid
If raised blood pressure with heat intolerance and weight loss- hyperthyroidism
But the possibilities are wide spread therefore you need consultation with a doctor so that he examines take history and makes a differential diagnosis and then work on it.