Momentary dizziness

Hi all,

I was just sitting at my desk when I had the quickest feeling of being off balance/dizzy/could lead to fainting ...but it was only for a second and then I felt fine (but a bit warm so I took my cardigan off).

We are TTC and my period is due in 3 days!

Has anyone had this as a symptom of implantation?

I haven’t had any spotting or sore breasts... but have had light cramping since ovulation.

Thanks in advance