i work in a call centre, when i take a break and take my headset off and stand up and walk about i get a whooshing sound in my ears and head that pulsates to the beat of my heart ( or so it would seem) this only happens after i take my headset off though, its a very tight pressure feeling in my head and it usually lasts about 5 mins before going, i am overweight , non smoker and non drinker. not currently diagnosed as diabetic and no other health problems.