I’m battling off-and-on dizziness again, similar to what I had back around the end of last year. Still unsure what causes it. As with last time, it’s not room-spinning vertigo, just more of a spacey, lightheaded feeling. Various things I’ve considered as possible causes:

• Allergies/Environmental
• TMJ issue (chewing/clenching/jaw tension)
• Low blood pressure/low heart rate
• Low electrolytes
• Dehydration
• Migraine
• Eyestrain/squinting or possibly vision issue (do I possibly need glasses?)
• Positional vertigo/motion sensitivity
• Something I’m eating

I’ve noticed that I rarely wake up dizzy. I often first notice it while eating breakfast, meaning that chewing/clenching (TMJ) or possibly diet could be factors. I suspect that the only way I’ll ever get to the bottom of it is to try to be scientific, keep notes on diet/environment/etc., and try to find some kind of correlation.

I ran on Monday, Tuesday, and Thursday (today) this week. Monday was 6.5 miles. I felt stiff for most of it, hit the wall at around mile 5, and cut the run short by a half mile. For mile 6, I could only manage a pace of 13.5(!) minutes/mile. Tuesday’s run was 7 miles, and the best of the three. I paced myself well and finished strong. Today was also 7 miles, and better than Monday, but the finish was not as good as Tuesday’s. It was, however, my fastest average pace of the week, at 10:50/mile, which is still about 20 seconds/minute slower than what I consider my average pace under ideal conditions. The dizziness does affect my running to an extent, but I don’t think it’s directly responsible for “hitting the wall”. My working theory is that the latter is related to electrolyte/hydration imbalance, and something else is causing the dizziness.

This winter’s house project is upgrading our home LAN. I am running low on ports (particularly PoE ports) so I’m adding an additional 8-port switch in a different part of the house, which will give me more capacity, and allow me to shorten a few wire runs. I’m also going to start upgrading some of the wiring from Cat-5e to Cat-6, starting with the “backbone” that runs from the FiOS ONT to the router and from the router to the switches. I’ve also replaced our old AP-AC-Pro wireless access points with new U7 Lites, which support WiFi 7. Once the new switch is in place, I’m going to move one of the old APs into the garage, to provide better coverage for outdoor cameras, and eventually support a smart garage door opener. Lastly, I may put an AP in the basement family room, and I want to clean up the wiring in the closet around our existing switch. We will see how much of this actually gets done. 😄