I am having indigestion problems again at night. Belching every 30 min or so...Any ideas of what to take? I already take probiotics...

Dietary adjustment. Would first recommend you avoid eating at least 2 hours before lying down. If symptoms persist, would recommend seeing your doctor for formal evaluation.
Likely GERD . You have dyspepsia or gastroesophagi reflux gerd.Try anti acid diet. Sleep in almost seated position. Take ppis like Prilosec ( or Lansoprazole nexium, (esomeprazole) others 20 to 40 mg/d or zantac, pepcid, tagamet. Get Tums if necessary. If not improved go to gastroenterologist.