might well be, but I'm quite restricted in what veggies I can eat (and then also only cooked)... fruit is a no go... :S ... (PS: it's also a bit psychosomatic I guess)
You may also have advanced celiac disorder.. as in you are allergic to gluten.. it's an autoimmune disorder which in the presence of wheat protein, causes the body to attack its own intestinal tracks..
The consequences vary for everyone, but with a damaged track, it could explain your inability to process certain foods..
It's often misdiagnosed as Irritable Bowel, or if you've never seen a doctor for this, it may be recognized as (I can't absorb fruits and veggies).
Now, you are able to DIGEST the wheat it self, and in some cases, wheat might not even produce any immediate gastric response, lulling you into the belief it was the other foods which caused your problems.
The starches in wheat are readily digestible in your stomach, but it's the wheat protein (gluten) which triggers that destructive autoimmune reaction..
This is also hard to diagnose, and they need to do a biopsy, an easier way is to diy is to cut out all wheat products for 3-6 months.. must be 100% to make sure..
Sticking to easy digestives for that duration, letting your track recover, while eating things such as rice/ potato /vegetables/ low grease.