I’ve had constant bloating, pressure above naval, epigastric

Patient: I’ve had constant bloating, pressure above naval, epigastric area along with strong pulse, constipation. Occasional spasm. History of substance abuse(oxycodone). Current meds include subutex 0.5mg daily. How can I reduce the pressure/pain?

Symptoms: Physical: Bloating, pressure, gas, pain, constipation.
Mental: Stress, anxiety, depression

Doctor: