My lower belly feels hard and swollen. What could be the reason for this?

For about several months now, my lower abdomen has felt hard and little bloated. I switched my diet to HCRV about 2 months ago (I'm trying to heal a tumor), with no change.

But I have been eating a lot more (fruits) in the past 2 weeks, because I found myself constantly hungry. And my lower belly is getting more and more hard and bloated since I have increased my fruit intake. Now, it is constantly bloated, and even when I wake up in the morning. I don't feel any pain due to that, but I feel heavy. It also embarrasses me as I can't wear skin-tight clothes any more, without looking like a pregnant women. And I have sometimes gas in the evening, too.

I'm looking for any explanation.

Here's my daily intake :

-2L apple juice

-1L orange juice

-2 small pineapples

-10 large bananas smoothie

-6 large bananas, 2lbs apricot, 1lbs spinach smoothie

-10 large bananas

-1lbs frozen french peas, steamed and little salted

-1,5L water

I do very little exercise. I sleep 10hrs per night. I mono-meal generaly (except for the banana-apricot-spinach smoothie) and I eat every 2 hours to stay everytime energised.

How can I deflate my lower abdomen?