My Chessie will be 11 years old in April. The last few months he has become extremely gassy. Bathroom habits haven't changed, he eats and behaves normally. There's no belly issues and his recent vet visits show he's in great shape. I've fed the best food I can afford (26p/12f/4.5 fiber), the same brand, consistently, his whole life. The same brand of senior food is 28p/12f/4.5 fiber. It's getting to where we are awakened in the night by the smell. Again, the vet says he's fine, but we never discussed senior food - brain fart on my part

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At 11yo he's stillall puppy, playful and very energetic. He just gets up a lot slower in the mornings.
Has anyone dealt with similar issues and has a transition to senior food made a difference? I fear the increase in protein will just exacerbate the situation.
Thanks all.