hello Mrs Brown- I've got IBS too. Any pulses, peas, garlic, leeks and onions are a big no for me. The last 3 can be difficult if you're eating out but I'm much less bloated and have fewer tummy pains if I cut them out. Same with most fruit, fresh or dried. Any fruit with stones seems to be a trigger and ideally you should eat fruit on an empty tummy else it just lies on top fermenting away! Also, pasta and white bread can be culprits. Have you tried the FODMAP diet?
Also Symprove- yes I tried a few years back and i believe it worked but it is expensive. I might due a reboot actually.
I went to Burma and Vietnam on holiday. The first part was a small group tour and I was probably one of the few people on the tour who didn't have tummy issues. I was gobsmacked given my problems. Also,you could try dried blackberries ( empty tummy if you can ) . If I got some twinges, I chewed a few of these and the pains went away. It was a tip from a seasoned adventure traveller x