I would deffo er on the side of caution here, protein in pee is not good.
(excuse me whilst I drag some of this out my brain, used ot work in this field a bit) 😳
The nephrons in your kidney are designed to filter stuff out your blood and pass it down to your bladder for weeing out. Most of these are very small molecules. Proteins are large molecules, so either your nephrons in your kidneys are not doing their job and letting protein out (acute/chronic renal failure), or something in your system is forcing large amounts of protein out your system through the nephrons and into urine (e.g. v high protein diet, some kind of crush injury that has developed a lot of swelling – the fluid of which contains a lot of protein).
The former is obviously not good, but if caused by something like infection, you can get it sorted fast.
The latter is not that good either as your nephrons are not designed to let that amount of protein out and it can cause long term damage. Had your BP checked? A high BP is a common cause of kidney failure but it is treatable and kidney function can return to normal pretty fast.
I had both an infection and a crush injury a few years ago (infection + dislocated knee– lovely!), kidney's stopped working, get really thirsty, peeing all the time, very foamy pee. Got infection treated and knee sorted and it went away and function is now A-OK.
So, bascially, it ain't great for a number of reasons, get it checked ASAP and take appropriate action to get it sorted!
Kev