hey guys.. got a problem here

For those of you who dont know my car is a 02 BUG eye, STOCK with just small extras like turbo timer, boost guage, and muffler.

So im driving down tonkin hwy after work.. going down south from great eastern hwy. Just letting you know the road conditions, its extreamly windy , i feel as if my car is gonna get swept aside, shit blowing everywhere.. so after 2 to 3 minutes of driving at 70 ks i entered tonkin hwy from great eastern and i full foot the car on 3rd gear from about 60 ks to 120.

Now half way towards leach hwy going at about 90ks i put it in 4th and full throttled the car, all of the sudden my car jerks, looses power, then accelerates again. Its as if my car just bounced off the rev limiter once and the yellow engine warning light comes on.

IT freaked me out, but the car was and still seems to be running fine. And boosting properly. At the next set of traffic lights i did a 0- 100 sprint and it ran fine.. but while the car is trailing at 90 or so. i put it in 4th and slamed on the pedal it did the same thing, as if it bounced off the rev limiter, looses power then accelerates again and just repeats itself the whole time upon accelearting. If i had to put it in other words i'd say i'd full foot the car in 4th from 90 and upon reaching 110 or so it bogs out then accelerates again like fuel cutt. i tried full footing the car on 5th from 90 ks and about 120 it does the same, Just simply bogs out and accelerates again. Combined with the engine warning light coming on i assume its not a good thing

What kind of problem is this. My car as yet to do the 100 000 k service as it is due just of last week. As im new to the WRX having only owned it for 4 months, Could it possibly the windy weather just doing this making the car jerk because its going against to much force of air and the ECU just restricts the power due to strain on the gear box? or was it the cold reving earlier?. its the first time this has happen and the only difference i can think of is that it was extreamly windy weather. Maybe a engine or ECU problem i dont know about.

Any help would be appreciated.