Conversation: The conversation between human and AI assistant.
[|Human|] I am female , 49 years old. I visited my doctor today and witChatDoctorplaints of two weeks of headaches. He gave me a muscle relaxant injection and said it was stress. The pain was relieved for about two hours. This evening, I have a pulse of 105 resting and a little tightness in my chest.
[|AI|]  Thanks for your question on Chat Doctor. In my opinion you may have delayed allergic reaction (mild) due to injection. Intravenous /intro muscular injection can cause delayed type of reaction (after 24 hours) in susceptible individuals. So you may have mild type of reaction. Chest tightness and tachycardia (rapid pulse rate) can be seen in allergic reaction. So your present symptoms can be due to mild allergic reaction after injection. Or it can be due to stress and tension. So avoid stress and anxiety. Be relax.