Hi, I have noticed in the last 6 months or so that after orgasm my heartbeat is very irregular, with gaps and then large thumps, lasts for about one minute. I haven't noticed any other irregular heatbeats. I sometimes get palpitations if I am very nervous, say before I speak up in a large room of people. I guess this isn't related but I have in the last 2 years seen consultants due to persistent pins and needles especially at night when I can only sleep on my back with my arms by my side, I have also suffered joint pains, MS, Lupus have all been ruled out (had an MRI scan and blood tests), but could the P&N's be related to a heart problem?