My Doctor Prescribed Sozol Pantoprazole To Take With The Anti

My Doctor prescribed Sozol Pantoprazole to take with the anti inflammatory Movalis 15, he said this was to protect my stomach. I've had a strong reaction, dizziness, headache, nausea, dry mouth etc... I needed to lie down but was unable to sleep. This also happened when I first took them a week ago so I stopped, then tried again today as I wasn't sure which drug was causing the reaction;
I've had no side effects taking half a Movalis without the Sozol. Would appreciate your advice, I can't see my GP until next week......regards & thanks Marilyn