Steering Is Loose problems of the 2007 Toyota Corolla

I own a 2007 Toyota Corolla. If it is windy on the freeway when I drive, I get blown all over the road. I have literally been blown of onto the shoulder of the road or into the other lane. Passing semi-trucks is also extremely dangerous in windy conditions. I look for similar movement in other small cars while I am driving and I do not see them being blown all over the road so I think that this must be a problem special to the Corolla. I is extremely scary when I'm traveling the posted speed limit on the highway and my car gets completely blown off of the road. The steering is so loose that I feel like I have very little control when being blown around by wind, and in reality, I probably do have very little control. Please look into this. I would be willing to place a bet that there have been fatal crashes involving Corollas under windy conditions.

I bought a 2007 Toyota Corolla two years ago and have noticed that sometimes at high speed it feels as if im loosing control of the car and that the steering feels loose. At the beginning, I didn't pay much attention, but this had created me to feel insecure when im driving fast. Im currently afraid to drive over 55mph because I have noticed that over that speed it feels as if the car is going thru a lot of wind. I cant really tell if the car is going in one particular direction, it just feels as if I cant make it go straight and have to constantly correct the direction im driving, even if its a straight road. I took the car to a shop to get it checked but they said the computer did not indicate any problems with the steering. I have been driving since 2003 and the last two years have been very stressful, all this time I've been thinking it was me that couldn't keep control of the car and had even considered retaking driving classes. I depend on my car on a daily basis and would deeply appreciate if you could make an investigation on this issue.