IBS

I GET IBS SYMPTOMS AND THEY ALMOST EXCLUSIVELY HAPPEN IN THE MORNING. I WAKE WITH BACKACHE,ACHEY ARMS,GASEY CHEST.
ALSO, EVERY TIME I EAT NEARLY ANYTHING , MY STOMACH GROWLS LOUDLY. ARE THESE SYMPTOMS OF IBS OR SOMETHING ELSE ?
I'VE SEEN MANY DOCTORS AND WAS ON NEXIUM FOR 6 MONTHS AND IT DIDN'T HELP.