It's a constant cycle. Few months on few off. I have had biomechanics assessments, am super careful with training, run mainly on trails, am a sensible weight, change trainers regularly, stretch, strength train etc etc. It just seems to take one event and they 'pop' leading to weeks/ months off. This can be a downhill run- pop; couple of road miles in hybrids when I took wrong turn -pop; change in orthotics- pop. I'm a heel striker with poor flexibility wearing a 10mm drop shoe and have tried slowly transitioning to a lower drop 8/6 but I get ridiculous calf cramp and tightness (suggestion of compartment syndrome) and just can't get past it even with strength work and massage etc. Physio has run out of ideas. Shall I just take up swimming?
Lizzy it's really common to find a vague abnormality in blood tests and as GPs we usually just run a repeat to look for worsening etc. The timescale of two months certainly suggests they aren't unduly concerned.
Common issues with liver function in otherwise healthy individuals are for example a raised bilirubin indicating Gilbert's disease which is pretty benign, requires no treatment and U.S. ysyally just picked up incidentally.
Plus reference ranges are only a guide and you can be perfectly normal but have levels outside of the ranges.
Rather than worry for three weeks, give your GP a bell and leave a message asking for clarification and check they feel you can still train.