Fainting episodes

My daughter is 15 months old. Recently she had some fainting like episodes.

Similar episodes on previous occasions:
* 27 Dec 2010 (2 episodes in 1 evening, at home)
* 23 Jan 2011 (1 episode in afternoon, at a park)
* 31 Jan 2011 (1 episode in morning, at day care)
* 12 Feb, 2011

Since on the last occasion, we were able to observe her behavior, we were able to note the details.


12 Feb 2011 (3 episodes in 1 morning, at home)

1st Episode
Time: Approx. 7:30am
1) Fully awake and walking around
2) Looking a little pale
3) Started wobbling on her feet and seeking something to support herself
4) Picked her up in my arms just as she grew unresponsive and slumped over my shoulder
5) Kept talking to her and took her to the balcony for fresh air
6) Vomited a little
7) Became responsive but lethargic
8) Gave her milk
9) Drank it very slowly and indifferently (unlike her normal way of drinking it vigoroursly)
10) Seemed to have problem suckling
11) Could only finish half the bottle in 20 minutes
12) Fainting lasted about 10-20 secs but lethargy/drowsiness continued much longer

2nd Episode
Time: Approx. 8:15am
1) Was drinking milk while lying in her basket
2) Suddenly became pale and still
3) Covered her eyes with her fists
4) Did not respond to calls
5) When attempted to pull aside her fists, found her arms somewhat stiff
6) When fists were pulled aside, her eyeballs were fixed on the ceiling and were not moving
7) The nipple of the milk bottle was held somewhat tightly between her teeth although she was not sucking
8) Had to pull out the bottle with some effort
9) She became responsive after about half a minute
10) Lethargy/drowsiness remained for some time

3rd Episode
Time: Approx. 10:30am
1) Looked and behaved normal
2) Was running around and playing
3) Suddenly turned pale
4) Began to wobble on her feet
5) When she was picked up, she became unresponsive
6) Eyeballs were high up
7) Some stiffness in the body was observed
8) Seemed to be a very slight bluish tinge on the lips (but can't be sure about this)
9) Became responsive again after a few seconds
10) Remained lethargic/drowsy for some time
11) Vomited second time in the day
12) Became normal in about half an hour

* Had a severe cold the previous night; laboured breathing was observed throughout the night.
* Dozes off after every episode.
* She is otherwise a healthy and active child but suffers from frequent cold and cough.


Tests already conducted:
* EEG (normal)
* ECG (normal)
* Blood serum (normal)
* Color Doppler (normal)


Doctors have not been able to zero down on why this is happening. Can you please help.
[message edited by Srupa on Tue, 15 Feb 2011 01:02:57 CST]