Multiple things: If your left arm and leg are both weak, you can be having or have had a stroke. Alternatively, brain tumors or seizures can lead to such weakness. Furthermore, high neck problems (discs, tumors, fractures) that are asymmetric to the left can cause these problems also. These are just a few causes by the way. See your md for a full workup.
Answered 12/5/2019
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2 doctors weighed in across 2 answers
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A doctor has provided 1 answer
2 doctors weighed in across 2 answers
A doctor has provided 1 answer
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