hjbradley

Hi, i am new to this forum and flight sims in general. My dad is a 787 pilot but he's not always at home so i thought i would come here. Now i dont know if this is a problem or just a lack of knowledge on my behalf but when i am flying a plane in fsx (this is any plane btw) and i am increasing or decreasing in altitude and then i level off, the elevators start moving on their own so the plane climbs or descends at great angles (normally 35-40) and so causes it to stall. This also happens when i am just flying level and i have to keep the stick constantly moving otherwise the plane will start to climb or descend on its own, and no i haven't touched the elevator trim buttons so should i and if not what shoud i do. i am also using a T flight Hotas from Thrustmaster.