Your description sounds exactly like peak swelling. My surgeon told me that my swallowing would get gradually worse for the first two weeks before it got better, and it sounds like you're right on schedule.
Bill gave you great advice. Just take it slow. Small amounts. Listen to your body. This too, will pass, and you'll get better. It just takes time. Remember that your insides have been through a lot, and swelling is to be expected.
Hang in there!
Nissen Fundoplication 2/09
"Whatever you fight, you strengthen, and what you resist, persists.”
“Worry pretends to be necessary but serves no useful purpose”
“Accept - then act. Whatever the present moment contains, accept it as if you had chosen it. Always work with it, not against it.”