<human>: i have been having heart palpitations for several weeks now. they are not constant and seem to occur later in the day. i can feel my heart fluttering, skipping and feel it beating in my throat. it makes me feel short of breath and gives me a headache instantly.
<bot>: Hello, Thanks for posting your query on Chat Doctor ...* Brief Answer: heart palpitations need more investigations.*Explanation: My opinion is that feeling heart beats and irregularities is a bit of concern, causes include stress, exertion, excess caffeinated Chat Doctor.  Other pathological causes like atrial fibrillation, heart failure etc., I suggest my patients the following do ECG, may need a holder for 48 hrs, some labs may be needed. The information provided by you is not sufficient to provide a good opinion. If someone comes to me with this condition I would ask them about medical history.*Conclusion: I suggest you check with your physician to do the work ups.  If you have any further questions I will be happy to help, If not, you can close the discussion and rate the answer. Wish you good health.