My recent H2S test showed a slight improvement from strong positive to moderately positive. I think 1500mg of L-Glutamine daily, does help. My digestive enzymes contain Bromelain, an enzyme from pineapple and the probiotics I'm taking contain lactose. I have been tested intolerance to both pineapple and milk. Does anyone know if there is any adverse effects if I continue to take the enzymes and probiotics which have ingredients that I'm intolerant to? Any suggestions for allergen free enzymes and probiotics? Is the feeling of hot/cold cycles throughout the night, an indication of methylation block or neurotoxicity? I'm starting to experience ringing in the left ear, each lasting about 10 secs. Appreciate any input. Thanks.