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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Profuse Sweating Along With Fatigue And Light Headedness?

I m 52, female, 128 lbs, great health. Have IBS w/constipation. Have about 2 events per year with IBS attacks where I cramp and am on toilet with the runs. What horrible is a sweat profusely, get weak, light headed and feel like I ll pass out. As soon as I get rid of it, I slowly start to feel better. Why do I sweat and get so weak ... is it my body reacting to the event? Just want to see if it s a heart issue as well. Thx
posted on Thu, 27 Jul 2017
Twitter Mon, 14 Aug 2017 Answered on
Twitter Wed, 16 Aug 2017 Last reviewed on
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Addiction Medicine Specialist,  's  Response
There are quite a lot of possibilities. Starting with what you actually have--IBS and age and gender--any stimulation of the gut can provoke a reflex lowering of the heart rate (VASO VAGAL REACTION) this then lowers blood pressure and someone feels faint and sweaty. There can be a lot of reaction during a menopausal hot flash. In this context, the pulse usually goes up.
THen, there's just a lot of other possibilities with heart being one of them, panic attack (unlikely) infection, drug reaction (unlikely), anything that causes dehydration and many others.
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What Causes Profuse Sweating Along With Fatigue And Light Headedness?

There are quite a lot of possibilities. Starting with what you actually have--IBS and age and gender--any stimulation of the gut can provoke a reflex lowering of the heart rate (VASO VAGAL REACTION) this then lowers blood pressure and someone feels faint and sweaty. There can be a lot of reaction during a menopausal hot flash. In this context, the pulse usually goes up. THen, there s just a lot of other possibilities with heart being one of them, panic attack (unlikely) infection, drug reaction (unlikely), anything that causes dehydration and many others.