Symptoms?

For the last 4 days my BBT has consistently been at 98.3... Which is closer to what it is when it spikes. Normally it's 97.something. Thoughts? AF isn't due till this coming Saturday. Also the last few days I've been dizzy on and off. I really try not to read into things usually, since I hate getting disappointed. Is this consistent spike normal sometimes? I don't want to test too early.