Buspar, Zoloft

My doctor prescribed these to me, I take the buspar at night time 10MG, and the Zoloft 50MG during the day, called my doctor today told her side effects that was going on, and she told me to just try 25MG tomorrow which I already feel better about. so far my side effects from buspar have been ill take my pill 30 minutes later ill get a rush of energy and my heart rate will go up. Are these normal side effects from Busipone? Who else is having this? right now I feel alright, I'm exhausted because I got worked up earlier..