I did a compression test, got 10 bar 6 bar 10 bar 10 bar in that order

am i right in thinking somethings gotta be seriously wrong to lose that much compression?
either way its getting worse each time i limp it to the shops...
even if its summat simple like a headgasket i havent got the money for that

i dont know 100% what to do about it atm, i guess i should try and see if the valves are leaking, or rings or a savage hg blow... its burning oil steadily too, which is a sod as it makes it even more expensive to limp around...