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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Sensation In Legs And Knees, Losing Strength, No Anxiety. Smoker. Treatment?

Sometimes not on a consistent basis,when I stand up i have a sensation in my legs and knees that Im losing strength in them and that Im going to collapse. Sometimes after sitting, but this morning I bent down to pick up my baby and when I stood the sensation came back. I don't suffer anxiety or heavy stress I play competitive cricket once a week and am a smoker.
Not overweight great diet.
Thanks
Tue, 29 Oct 2013
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Addiction Medicine Specialist,  's  Response
Hi,

The abnormal sensations that you describe may be due to pooling of blood in the lower limbs when you suddenly stand from a sitting posture, which transiently lowers the blood supply to the brain and makes you feel faint and weak. This can be induced by some medicines, caused by dehydration or may even be a normal physiological finding. It may also be an early sign of venous insufficiency. Smoking can indirectly worsen it by causing thickening of the walls of the blood vessels. In my opinion, you should inform your doctor about this so that if required, he can run down some tests on you. Avoid standing suddenly from sitting position and make postural changes slowly. If possible, quit or at least cut down on smoking.

Hope this helps you. Best wishes.
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Sensation In Legs And Knees, Losing Strength, No Anxiety. Smoker. Treatment?

Hi, The abnormal sensations that you describe may be due to pooling of blood in the lower limbs when you suddenly stand from a sitting posture, which transiently lowers the blood supply to the brain and makes you feel faint and weak. This can be induced by some medicines, caused by dehydration or may even be a normal physiological finding. It may also be an early sign of venous insufficiency. Smoking can indirectly worsen it by causing thickening of the walls of the blood vessels. In my opinion, you should inform your doctor about this so that if required, he can run down some tests on you. Avoid standing suddenly from sitting position and make postural changes slowly. If possible, quit or at least cut down on smoking. Hope this helps you. Best wishes.