I had my first doctor's visit and testing regarding my attacks of lightheadedness. My doctor ordered both a CAT scan and blood work done immediately, and in fact his office called Pottstown Memorial Medical Center fifteen minutes after I left to see if I had arrived yet. The CAT scan came back with a possible problem, a small hypodense (non-solid) lesion deep in my left parietal lobe that we need an MRI to see better. Neither the doctor or the radiologists who saw my scans thought there was anything to worry about. Still, it's odd to know I have something abnormal up there.
Also, the blood test wasn't for sugar level, so I have one of those scheduled for Monday. My doctor doesn't think I'm diabetic or pre-diabetic, but just to be sure, I'm getting more blood drawn.
Meanwhile, I've ridden my bike all of three miles the past two weeks. I'm going to attempt my first bike ride in two weeks this afternoon. Wish me luck. As a partial concession to safety, I'm going to restrict myself to a local bike path. My doctor isn't exactly pleased I'm still riding, but since my four or five lightheaded episodes all seemed to occur either first thing in the morning or about an hour or two after eating, I suspect if I haven't shown any problems today, I should be OK to get out.
I suspect the lightheadedness is simply a combination of stress at work, my recent off-season weight gain, and the lack of sleep both have caused.