Brief Answer:
May be age related or drug related.
Detailed Answer:
Hi XXXX,
I went through the query and understood your concern.
Since you are 75 years now, the low energy state,
muscular pain can be due to age related or also due to the drug Xarelto as the drug can cause anemia, low energy state,
myalgia in around 1-10% of patients.
So for age related weakness or muscular pain, plenty of oral fluids and nutritious diet, vitamin and
calcium supplements with mild
analgesic will help in preventing the symptoms.
If it is due to the drug, then check for complete hemogram (
blood test), renal function test to rule out any pathology, follow the above said instruction and if any significant problem is present then the dose or drug need to be adjusted. Usually this drug is safer compared to other older drugs and it is absolute necessary for you to continue. If no problem in blood test, then the above measures will help you.
Daily 30-60 min mild outdoor activities will help in boosting your energy and also your wellbeing.
Hope this information helps you. Feel free to ask if any further queries and I will be glad to answer them.
Wish you good health.
Regards