Conversation: The conversation between human and AI assistant.
[|Human|] yesterday after lunch i was feeling great. about 1 hour later my heart started beating extremely fast, and it felt like something was pressing down on my chest, and right leg pain. I checked it and it was 132 (resting) it went away after about 5 minutes. this am i woke up with major irregular heartbeat and headache. i just ate lunch and i seem fine but im still worried sick. am on levothyroxine for hypothyroid for 2 weeks now.
[|AI|]  Hello, Thyroxine can cause tachycardia, so I need to know how much dose you are taking, also the TSH level before starting thyroxine. If you are feeling your pulse is irregular then you need an ECG to look for atrial fibrillation. You also need to know your hemoglobin level as it may also aggravate palpitations. You can visit your doctor again and ask for dose reduction if possible. Hope I have answered your query. Let me know if I can assist you further.