hi guys, I made a stupid mistake of buying a big bottle of ON gold standard 100% whey... I read online that it's "newbie friendly" whey, so I took it. Mana tau it disagrees with my stomach and causes gassy stomach (i have problem with gastritis, so I cant really drink alcohol/coffee).

Anyone have similar symptom? Any alternative suggestions or should I just stick to eggs? My lifestyle kinda stop me from eating enough protein so even after gym for 3 months I have zero/little muscle growth...