My wife just went through a similar experience, and the doctor sighed. He said he wished they wouldn't warn people about this as much as they do. That being said, a low carb diet might mean you are eating way too much protein, or it could mean you just eat somewhat more protein. Eating too much protein can cause kidney problems. Statins, as far as I know and I'm not an expert, are more of a problem for the liver and the joints. Talk to your doc, but if when you got the test the doc didn't call you in for further investigation it meant most likely the doc didn't see any real problem. I'm not sure why covid has limited your activities unless you live in a country that imposed severe quarantine, as although we don't do all the things we used to do we have more time for exercise because we're not doing those things. But do know that low carb diets are not correlated with health, although they can be effective in a short period of time with short-term weight loss. They can be dangerous, as protein isn't our energy food, carbs are.