 [ Symptoms ] very sudden extreme dizzy feeling as though spinning which drained my energy and made me want to vomit could be sinus  recently had a severe head cold that lasted for more than a week and started acting like sinus issues before leaving felt fatigued this morning but better after starting the day sat down to have my usual veggiefruit smoothie when i was overcome my a five minute extreme spinning feeling that made me want to vomit after i notice my nasal was congested and i was drained never felt like this before [ Disease ] hi i think what you was having was near to a fainting fit have a good read through this link sounds from the way it reads it could help you <link> just copy into google to the www to open and read but not to sure it was down to you sinus is being blocked up sounds more like low blood pressure good luck