hi,
thank-you for providing the brief history of you.
A thorough clinical assessment is advised with a complete blood and urine culture.
As you are 64 years old, your
metabolism might be slow due to the degenerative changes in the body. Also, you need to check ur blood sugar levels along with complete haemogram and urine test to figure out if possible infection is present. Based on which the antibiotics will be advised.
Also, you need to even perfrom some breathing exercises as it will improve the
oxygen carrying blood cells which will help assist in healing faster.
later part, performing slow gentle general body exercises will help improve the Cardiorespiratory endurance and improve the metabolism & immune system to fight against the infections.
For weakness in a later stages,
physical therapy will help improve the strength in the particular group of muscles .
In my clinical practice such geriatric cases responds well with a combination of multiple understanding of the systems.
Regards
Jay Indravadan Patel