Baby muscle spasms...due to low potassium???

Hi,

In the last two days my seemingly healthy-almost 8 month old daughter has been having involuntary arm/shoulder/upper body spasms.  Yesterday, I saw it happen maybe three times, (2-4 twitches per instance) today, there were probably over 100 times that she had this spasm, all situations except while sleeping. No fever or any other sign of sickness.  Seems to happen most when she's excited, like an excited fist pump. Any other parents have this due to low potassium? She is exclusively breast fed and for almost 2 months has been eating rice/oatmeal veggie/fruit servings with 4 nursing sessions daily. Now, lately we have not been giving her the Poly-vi-sol vitamin regularly, maybe once a week, if that. So before I freak out over what brain disorder that is causing this in an otherwise perfectly healthy baby with no complications EVER since conception, I hope someone may be able to help. Thanks.  
p.s. Gonna take her to the ER tomorrow to get her potassium level checked, I hope it's LOW!

[Renee Radenberg]

Your daughter should be getting enough potassium from the breast milk and baby food vegetable and fruit. I suggest you start giving her daily the Poly-vi-sol vitamins again, which are needed through their 1st year of life and have her checked by the MD.