My mom is severely allergic to bananas.. It actually started with a latex allergy.
Now she is allergic to: bananas (and plantains(they're the same)), rubber, tropical fruits.. mangoes, kiwis, cantaloupe, honeydew.. shes slowly becoming allergic to other starchy veggies like potatoes.. they all share the same basic proteins
I will have a slight itchy feeling in my throat with bananas, so I eat them very rarely.. this is because an allergy gets worse everytime you introduce yourself to it. so if you aren't sure you have an allergy, but you react "funny" to certain foods, eat them very rarely. Don't force yourself to eat them.. I LOVE bananas, but its not worth needing to carry an epi-pen with my everywhere I go!
What fruits are you allergic to? Is it all fruits? I know a woman who is basically allergic to sugars. She gets terrible rashes if she considers eating a fruit. And the rash will last for a week or 2 and that's flushing her system.
As much as fruits are "essential" I would find other foods that replace the nutrients found in the fruits that you react to. You should steer clear of them because as much as they are "essential" it really doesn't matter if you don't make it out of an allergic reaction..
As for me with veggies: I like carrots and other veggies. I have learned to enjoy chilled edamame.. oh soo good! 1/2 cup is 100cals, 3g fat, 3g fiber and 8g protein..
Also different fruits that are "better" at filling up than grapes:
BERRIES! Raspberries and blueberries both 70cal for a cup, 0fat, 9g fiber! Strawberries are a little bit more calories, and less fiber, but they taste sooo yummy!!
I generally have a big bowl of fruit in the morning and some sort of other "bulk" today it was a lite english muffin.. with some margarine and some apple butter
LOTS of fiber between the 2!