Ask a Neurologist. Get Answers to Your Neurology Questions.
But from what you describe it is less likely that a blood clot has moved to left leg from your arm.
It seems more likely to be a muscular issue or lumbar radiculopathy.
If you notice any localised swelling or discolouration or acute pain in leg you may undergo a colour doppler study of the leg.
I hope this helps
Let me know if you have any further query so we can discuss it thoroughly in every aspect.
Please to not forget a positive rating and avoid poor/bad rating.Waiting for your response.It’s my pleasure to continue this conversation until you satisfy.