Suggest Treatment For Severe Bloating And Constipation

Hi, I take my protein shake with powdered oats + BCAA half 2 gms + Creatine 5gms in water, 2 hours before my workout. I go and take a dump an hour and half after having it. But, I got called for a meeting urgently so I went, i was already feeling bloated, but went for the meeting. I had coffee (being a fool). And felt more bloated, but passed gas and felt relieved. After 2-3 hours, I met my friend and then we had sex, I was still feeling a lil bloated. The Condom broke in the end so I stopped. I went to the washroom and washed. And peed normally. But since that day, I ve been feeling bloated, and constipated. After a day I tried having gelucil, finished the 1/3rs bottle in two days, but didn t get a lot of relief. I went to see Doc after 2 days, he ha s recommended me secnil just one dose of 2 caps, pentosac d twice a day and two more from the clinic twice a day. Feeling better, but still feeling a lil constipated and head feel spinny since the time I had sex. Worried. Please suggest the tests I should get done. My urine is all fine. Just head feels spinny and a slightly low on energy cauz of my stomach, as I feel the urge of taking a dump, but not getting complete relief.