sudden vertigo while sleepingextreme dizziness while sleepingsevere dizziness while sleepingnight dizziness while sleepingdizziness and nausea while sleepingvertigo attack while sleepingdizzy spells while sleepinglightheadedness while sleepingfeeling faint while sleepingfeeling giddy while sleepingdizziness while falling asleephead spinning while sleeping
