dizzy spells

Add dizzy spells to the symptom list.  This whole morning I have felt whoosing on and off.
Most likely it is just related to the PIO, but I can't help read into it since this was one sign I really remember during the ttw for my twin pregnancy.  I remember me and dh were somewhere playing a game of minigolf and I didn't feel good for the whole game and needed to constantly sit down.  This was before I knew I was pregnant, but far enough along for implantation to happen, so I am guessing around 8dpo since I first tested and got a bfp at 10 dpo that cycle.

Only other symptom I am feeling is the mild twinges.  So far no nausea, tiredness, or sore breast.