Pepcid causing me anxiety/nightmares

So I’ve been taking my PPI every morning as long with one Pepcid every morning. I take the Pepcid cause it helps me with the brain fog and mental numbness I had beforehand caused by (GERD/GASTRITIS). But since I started taking it I have the most vivid nightmares, I haven’t slept well in months. And it’s just hitting me it’s been causing me anxiety and paranoia in the day for simple things, like I randomly get the sudden sense of doom. Has anybody else gone through something similar?