What Are The Causes Of Arm Weakness ?
Thanks for posting your query.
I agree with you because you need to get an examination done from a neurologist for these symptoms.
Arm weakness is a loss of strength in the arm and an important cause is infection of the soft tissue of the arm particularly when a predisposing infection was present.
It could have been due to pneumonia and pleurisy in your case but since the pneumonia was one month back, it is a less likely possibility.
Diseases of the neuromuscular system, injuries, metabolic diseases, and toxins can all cause of measurable muscle weakness. At your age, it is important to rule out any Diabetes, Hypertension, Brachial plexus cause as well as an impending Stroke.
You should consult a neurologist and get a neurological examination, MRI scan and a NCV (nerve conduction velocity) and EPS (electrophysiological study) done to rule out the neurological causes.
Hope this answers your query. If you have additional questions or follow up queries then please do not hesitate in writing to us. I will be happy to answer your queries.
Wishing you good health.
Regards,