Since your current medication hasn't worked, you can try an osmotic laxative like polyethylene glycol powder, which safely draws water into the colon to ease passage. For quicker relief of the 'blocked' sensation in the lower rectum, a gentle glycerin or bisacodyl suppository can help. Drink plenty of fluids, eat fiber-rich foods, and try light walking. Since you are still passing gas, a complete blockage is highly unlikely, so there is no need to panic. However, if you develop severe abdominal pain, vomiting, or stop passing gas, please consult a doctor. Seek medical advice if symptoms persist beyond a few days.