Thanks for posting your query.
Hypertension, nausea, high body temperature and muscular pain
suggest high adrenaline levels in body. It can be due to stress, alcoholism, adrenal gland disease
and thyroid disease
. Adrenaline/nor adrenaline helps body to deal with 'fight or flight' situations but its excess can put our body to a stressful situation.
Visit your treating doctor and get tests like MRI, blood and urine tests for catecholamine
and metanephrine levels.
Hope it helps.