Is it normal to feel the dizziness/lightheadedness after taking a PPI?

[Dextar_]

I was diagnosed with gastritis 3 week ago.i was given a hpylori kit for 1 week but after the biopsy results came back i tested negative for hpylori thus discontinued the kit. I was put on Esomeprazole 20 but i had very bad side effects especially dizziness and body weakness... I went back to the doctor who changed the medication to Lansoprazole 30mg but still i feel like there is no improvement on the dizziness and body weakness. I am also having heart palpitations which i think are from anxiety. Other side effects i am having include tingling sensation in arms and legs, chest tightness, headaches, sore throat and cough with sputum... Is this another underlying condition or are they just side effects of the drugs?
Sorry for the long story