Thank you, XXXXX XXXXX got a little busy, so I was going to apologize for the wait inbetween posts.
I forgot to ask you about the colors that you saw. People that have migraines (which are not unusual to develop in your age range) sometimes have what is called an "aura" where they may see colors, often in a zigzag pattern, or may see a light or some loss of vision, and double vision alone can occur. Also, it is not uncommon to have a migraine without a "full blown' or severe headache (many people don't realize this). Vertigo (dizziness) can also occur at this time.
In your case, if you later felt fatigued and have a mild head ache, the likely cause is that of migraine headache. A typical migraine starts with an aura and visual changes which may or may not progress to a headache, and then fatigue. The most important recommended treatment for migraine is sleep and rest, by the way. There are of course other treatments, that I'll discuss below.
You also report little food intake, if I understand you correctly. Hunger is a known trigger in some individuals for migraines, as well as disrupted sleep pattern or poor sleep.
Because you had been standing a long time, I thought of the possibility of vasovagal response (medical name for a type of fainting) but because of your other symptoms this is less likely. Dehydration, as well as standing for a long time, and sometimes (but not always) anxiety can cause this.
These next two conditions that I mention, I don't believe you had, but I do want to mention them for your information, and I do recommend you see your doctor for a check up.
There are types of strokes associated with these symptoms. One condition in particular is basilar artery insufficiency syndrome. This is an artery at the base of the brain stem.This is usually seen in older individuals that have some thrombosis in the basilar artery and may have other blood clotting problems. There are usually more serious symptoms that go along with this such as numbness, and dysarthia (difficulty speaking) and other transient stroke symptoms.
Another condition that effects this same artery is called basilar artery migraine. There is a slight possibility that this is the type of migraine you had, but often there are even more symptoms than what you described and there is usually a severe headache with this.The symptoms include double vision, vertigo and muscle weakeness, and there can be other neurological symptoms lik numbness. This is said to occurs most often in young women before menses. There may also be more serious symptoms such a dysarthia, and numbness but this is not related to thrombosis or strokes as basilar artery insufficiency syndrome is.
So to summarize, your symptoms were not severe enough to be the basilar artery migraine, but from what I understand and the history I have from you so far, it likely was a migraine, even though there was not a severe headache.
We recommend evaluation by your health care provider whenever there is new onset headache (different than a typical tension headache). Likely, I think, if you watch your fluid and food intake, and give yourself breaks, make sure you are sleeping enough, that this may never be a problem for you again. But to be safe, you should see your doctor and see if they want to do any investigative studies like a CT scan or MRI just to make sure there is no other problem. The double vision (diplobia) with the vertigo, is what makes this a little different than a normal migraine or fainting episode.
If you have any questions please reply so that I can help you with them.