<s>[INST] My chest is tight / heavy right under my sternum. I am finding it a little hard to breath without making an conscience effort to do so. I have taken 2 otc benadryl several hours ago. I have also used my pro air inhaler 3 times now. I just want to lay on the couch. My head feels like it is wrapped in a tight towel.   I am allergic to cats and did move 5 this morning. Hence taking the benadryl. [/INST] Hi, * The issue seems to be acute allergic bronchitis. * Needs immediate evaluation with peripheral oxygen saturation, vital parameters of respiratory and cardiac regions. * Till that time period, deep breathing exercises with the preference of semi-reclining position when resting is best. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Bhagyesh V. Patel, General Surgeon </s>