From the Guardian, a staunch Labour party paper:-

"Poor old Diane Abbott. There she was, desperate to cast her vote on article 50 at 7pm, only to go down with a migraine just a couple of hours beforehand. The Labour MP John Mann has rather cruelly accused her of throwing a sickie to save herself from the dilemma of choosing between her constituency, 80% of which voted for remain, and Jeremy Corbyn's three-line whip. As someone who has been known to take the odd sickie myself – though obviously never while I've been working for the Guardian – I feel obliged to give Diane a few tips on the right way of doing it. Don't get photographed having a few drinks in the pub the night before. Don't make an impassioned speech in Westminster Hall less than an hour before you want to bunk off. Don't tweet less than an hour after you are officially throwing up with a migraine. The key to a good sickie is plausibility. Some well-placed, attention-seeking coughs, several hours before you plan to go home. Talk loudly on the phone about how ill you are feeling and that you aren't sure you're going to make it through the day. Then wait for a colleague to suggest you go home."

Oh Dear!