I have been wearing new upper dentures for approx. 2 months and it feels too big for my mouth. Also, I feel that I am talking with a hissing sound, like I have a mouth full of saliva which I do not. What can I do about this or is this only temporary? When I am talking I can tell people are looking at me and wonder why the speech problem. Does this getter with time or do my dentist need to make some sort of adjustment?
Thanks

You should go see your dentist. If you've lost weight or had the dentures placed right after having teeth removed your gum tissues will shrink. You may need a temporary reline.