Maybe try “eating intervals” to give you body a chance to digest the Huel process the nutrition.
Think of it like this, chugging a Huel is a bit like eating a whole steak in 30 seconds, I’d feel pretty bloated too
I try and drink mine in 250ml portions with at least 30 mins between each.
I make up 2.5 litres a day. Drink breakfast between 8-10am, then Lunch 12-2pm. Then have the last 500ml post training. This balances the science around nutritional availability with the practicalities of my day to day life. Everyone is different though…