Several problem after tooth surgery.

On 16th May.. I had e teeth surgery. After that my dentist prescribed me some antibiotics(painkillers included). After one week I had a lump on back of the tongue, some red-white patches on gum, burning sensation in mouth and dry cough.. Doctor said it's a fungal infection and prescribed saccharomyces boulardii(CNCM I-745).. Then I found slide constipation. Then after 2 wks I had faced some burning when urinating and yellow pee.. After one day I got burping mainly after a heavy meal(specially at night). After 2 days of burning sensation at urethra it became normal. But 1-2 times I got yellow pee(specially in morning). Then suddenly I faced heavy constipation problem.is this any side effect of antibiotics? What should I do now?