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Since how long you have this problem ?
Any known medical problem or medicines you are taking ?
Your age and gender ?
Thanks for the information
Weakness in lower limb muscle can be due to a neuropathy or a myopathy . That need a specialized opinion from a neurologist or a rheumatologist. Test like an EMG/NCS,muscle enzymes,MRI and muscle biopsy are usually helpful in establishing a diagnosis. I would suggest that you make an appointment with a neurologist or rheumatologist for further evaluation as if it continue like this you can have permanent irreversible damage so this is the time to get evaluated and treated accordingly
Feel free to ask if any more question
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