I think our experiences in the past, especially from an early age may be the times where we allowed certain fears to root in us,. We face them at some point of our times again. And mostly it the anxiety or an environment that is not comfortable to you that may trigger such feelings. However, the positive aspect is that with time and confidence you get stronger and learn to be calm and at ease even when you feel like life may not b goingthe way you want it to or the way you had thought about, but it's okay.
On a lighter note, i have heard people saying that even after decades of spending times with their spouses they have not fully understood them or the process of understanding a person/ a human being may be the toughest thing for any person. What matters is that you know who you are and all the life yo are living to understand yourself. Sometimes what we see is what we know about us. So, take it easy for as long as there is no real medical condition, which I do not see there. I am sure you are going to be fine. Just stay busy with whatever you like doing and it is important to have healthy conversations with your partner on the subjects of all that you have in common or anything you find interesting. And maybe at some point have a pet like a cat :D Cats are the most mysterious of animals. Have a great weekend.
I'm so sorry you're going through this. Have you seen a doctor? I don't mean to scare you and I'm not a doctor, but this seems like a potentially serious medical condition. If your PCP dismisses your symptoms seek a second opinion and a third and a fourth opinion until someone runs the proper tests. I would insist on getting a brain scan asap.
Can you go to a doctor? You don't want to dismiss this as anxiety, anxiety shouldn't cause this. It might be a symptom of a brain tumor or a psychiatric issue.
If you simply didn't recognize him I'd say it could be a form of prosopagnasia (a syndrome where you have difficulty recognizing faces), but this sounds more like you actually forget him.
Is it that you forget you're with your husband and when you look at him you see a complete stranger, or is it that you forget who this guy is entirely?
With the headaches and dizziness, I'd say it's probably anxiety. Our minds are powerful, and I'd be pretty scared too if this happened. It can also be a sign of dehydration or lack of sleep, both potentially caused by the stress.