Dreams, headaches and insomnia

I have been trying to conceive since April. The past 5 days I've been fertile and have taken advantage of the situation everyday. For the past 2 days I haven't slept soundly waking up through the night, which doesn't happen often. Headaches that lasted through the day and indigestion. Last night vivid dreams when I was able to sleep that kept my mind racing. Thoughts? Am I over thinking this or could it be early symptoms?