Hi,
Noted the history about a 68 year old female having
diabetes and
hypertension which has become labile that is fast changing, has
tiredness which gets over after a rest for an hour or so.
The commonest causes I can think about since you have attendant heavy head sweating with activities are as follows:
Diabetes itself is the commonest cause of tiredness.
Since your Cardiac health is normal there is nothing related to heart causing your symptoms.
The sweating can indicate some sort of infection which can be easily diagnosed by tests of blood, urine, stool and other needed investigations.
IF there is viral infection then you need a symptomatic management; if there is any bacterial infection then you may need additional antibiotic cover for a specific time as per the condition diagnosed.
Deficiency of multivitamins, minerals and trace elements can cause weakness hence you need supplements of the same.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. T. Chandrakant, General Surgeon