Wont let me type certain letters in one spot of screen

Help please

Iphone in upright position wont let me type letter Y at all ive tried everything Y doesnt even show up if i slide my finger across the keyboard it just skips it, and the letters underneath it are hard to press, like the first time i try to type letters G,H,V,B (directly underneath Y) it will type the letter closest next to it, but if i touch any of G,H,V,B in the right way i can get the letter i want after a few trys.

if i turn it sideways so Home button is to the right side i have almost no problems, However if i turn it so the home button is to the left side it is hard to type any of the letters on the upper row...

ive tried every keyboard wether its google, text message, notes, ect. they all do the same thing

Any help would be greatly appreciated

---this happend once before a few months ago but went away over night, now it happened this time and has been like this for a week---