This is Dr. David
sorry you have been battling lupus for so long.
lupus can be a tough disease to battle.
at age 71, if you are getting out and keeping busy, that is pretty good already.
lupus can cause balance problems and vertigo.
what has your most recent TSH levels been? it is good to monitor your TSH levels if you are on levothyroxine.
you need your iron and magnesium levels checked.
it could be normal for you to have these symptoms of fatigue and balance problems.
but you want to check to make sure that something which is correctable is found
like low magnesium levels
or wrong thyroid hormone dose
or low iron levels
the TSH level should be between 0.3 and 3.0
I am sorry about your son
it sounds like you have been running hard over the last 6 months.
I would see your doctor and get blood testing and evaluation just to be sure.
you don't want to neglect your own health.
when you care caring for others.
does this help?
do you have any other questions?