I've been experiencing back pain recently , right in the centre, its on and off and not severe but a dull lingering ache. We've had the sun in the UK all week so along with quarantine Ive been sat on uncomfortable chairs but Ive also been out walking around 1 hr per day so surely it shouldnt still be there? I was up last night too and my heart was racing and I generally feel under the weather - is this anxiety, overthinking or a virus?