I AM TAKING MELOXIM 15MG.I HAVE BEEN TAKING IT FOR

I AM TAKING MELOXIM 15MG.I HAVE BEEN TAKING IT FOR 3WEEKS. DOES THIS HAVE ANYTHING TO DO WITH SEVERE PAIN IN THE MUSCLE OF MY LEGS AND I HAVE VERTIGO AND WOKE UP THIS MORNING WITH A LITTLE DIZZINESS AND DURING THE NIGHT I HAD SEVERE PAIN IN THE MUSCLES OF MY NECK. I WAS DIAGONOSED WITH ARTHRITIS IN MY NECK I AM VERY ACTIVE -GO TO THE GYM 5 DAYS A WEEK. ANY SUGGESTIONS WOULD BE APPRECIATED