every situation has it's pros & cons such as this pandemic. almost every country is on lockdown which hurts the economy all around the world. we're "locked" in our houses, most people work from home & schools are either cancelled or online classes are being held. this situation puts a lot of anxiety on many people, makes many people's mental health worse if they can't cope. if that's the case self-management seems to be harder to do. on the other side if people can easily cope with this position or they're more introverted or e.g have social anxiety their self-management may be easier since they don't need to press themselves into situations with other people. this is just a generalisation & anything can be otherwise as i stated but that's my view based on people's reaction/feelings/thoughts around me.
The answer to your question is: A) Your food journal.
It's best to use a food journal to keep track of the things you've eaten, and how much calories you've eaten throughout that day. Using a journal can help you when your on a diet so you can keep track of what you've been eating.
Electrolyte imbalance, blood test results showing low levels may lead to: irregular heartbeat, confusion, blood pressure changes, nervous system or bone disorders.