Hi Breda. You should not worry about MND. It involves the motor neurons so symptoms are weakness, clumsiness, spasms, difficulty swallowing, etc. It is not characterized by pain or numbness and tingling as you describe. Has this been going on for a long time?
If this has been going on for awhile and your GP can't pinpoint the problem, ask for a referral to a rheumatologist to rule out an autoimmune or autoinflammatory condition such as fibromyalgia or rheumatoid arthritis, etc.
Yes. Menopause can lead to symptoms like this, or make them worse. A low thyroid can also do this, so you will need to follow up on that. Depression and anxiety that arenot well controlled can also worsen such symptoms.
You're welcome. Let me know if you have any additional questions.