Hydration helps

Thanks, Fidel. I will try to drink more.

My track coach used to recommend eating half a banana for breakfast on tough workout days

Bananas are such a great idea! I wish I could eat them. In case anyone else has the problem, the spasms and twitches seem to have resolved. I started drinking an additional liter of water. I also add a packet of pruvit mitoplex electrolytes to one of them because I found it in the pantry and because it has decent potassium.

Be sure to do lots of stretching before you start to warm up the muscles.

Thanks, Sammy. Will do!

Lakota, I think dried apricots are good for potassium as well.
Glad your issues are resolved!

Autocorrect strikes again!! That was lajit

I make protein shakes with banana and plenty of electrolytes and liquids. Also: stretching is a life saver. If you think you're doing enough, no you're not. Stretch for at least 5 minutes before any strenuous activity.

Hakfetty, thank you so much for responding. I still get a little twitchy, so I will try the apricots.

Only Kai, I will do more stretching and report back. The problem is my left quad, left hip flexor, and left lower back. All these areas are connected. I do a lot of yoga, but yoga tends to be hamstring focused. Thanks for your advice.