I would suggest there is some chance it could be related to your ears. When under stress, people with stuffy noses are able to breath much better than normal (im one of them)...ears and noses are connected in some unknown way this may well be the answer
Thanks for using the forum. I am happy to address your questions, and my answer will be based on the information you provided here. Please make sure you recognize that this forum is for educational purposes only, and it does not substitute for a formal office visit with your doctor.
Without the ability to examine you and obtain a history, I can not tell you what the exact cause of your symptoms is. However I will try to provide you with some useful information.
I am not sure what you mean by the term dizziness. When some people use the term dizziness, they often mean vertigo, or room-spinning. Others mean a light-headed, whoozy feeling.
If by dizziness you mean vertigo (room-spinning), your symptoms may be due to a variant of migraine called basilar migraine. Basically this is marked by several hours of vertigo associated with nausea, light-sensitivity, and sometimes other symptoms. Headache may or may not be present. The treatment is different from that used to treat other migraine types; the treatment in this case is a type of medication called calcium channel blocker, such as verapamil, which is actually used to treat blood pressure but works in type of basilar migraine as well.
The causes of vertigo (room-spinning dizziness) could be either the inner ear or the brain. Inner ear causes of vertigo most commonly include benign positional vertigo (BPPV), which is due to small particle in the inner ear that moves out of place, and can be repositioned with simple head maneuvers. The symptoms often include vertigo that occurs with turning of the head, often while turning over in bed. Another cause, if your symptoms are associated with tinnitus (ear ringing) and hearing loss is called Meniere’s disease and can be treated with medications and sometimes surgery. And so on, several other causes from inner ear problems exist.
Less commonly, vertigo can also be due to problems in the brain. The most common is a benign (not cancerous) tumor called a schwanoma (also called acoustic neuroma). This is diagnosed by MRI of the brain. Thyroid problems can also lead to vertigo.
If by dizziness you mean light-headedness, causes could include low blood pressure such as due to dehydration or autonomic dysfunction, cardiac problems, and several other non-neurologic causes. Anemia can cause light-headedness as well.
I am not sure why an emotional situation resolved your symptoms, this is unusual!
I recommend continued follow-up with your doctor; if he/she suspects you may have basilar migraine, referral to a neurologist may benefit you.
Thank you for this opportunity to answer your questions, I hope you find the information I have provided useful, good luck.