<s>[INST] Hello, I am 35 and 6 weeks pregnant. Prior to pregnancy I tachycardia after I eat and during digestion. Now with the pregnancy I have tachycardia all the time unless I lie down. It wakes me from sleep at about 136bpm and if I stand long enough to shower, I feel like I will pass out. My BP is normally borderline line high, but when I standing to comb my hair I felt faint so I took my BP standing with wrist monitor. It was 100/60 pulse 157. I feel poor circulation in my left arm and get mild to mod short chest pains. Can anything be done for me besides beta blockers which they refuse to give me because of the pregnancy [/INST] Hello, and I hope I can help you today. Tachycardia is relatively common during pregnancy. It most usually occurs without underlying heart disease. The most common reason for tachycardia is deny Chat Doctor.  Anemia, which is also common during pregnancy, can be a contributing factor. Many people have tachycardia after a large meal, because the blood from their body is being shunted to their gut to digest the food; therefore the blood pressure to the rest of the body goes down. This is also what makes you feel tired after a large meal. Fluctuations in blood pressure especially when you stand up are common during pregnancy. Your blood pressure can become very low while you were standing up, and your body tries to bring more oxygen to your brain and heart by increasing your heart rate. Ways to avoid this can include making sure you get up very slowly and also  </s>