I recently started my first cycle test e 500 mg @ 250x 2 times weekly. I'm also taking 0.25 mg arimidix ED. It has been 8 days so far. For the past 3-4 days I've been noticing stomach aches every now and then. This is very unusual for me, since I cannot remember the last time I even had a stomach ache. Is this something I need to be worried about? What could it be?