Concerns? No…but I’d definitey replace it. I sincerely doubt it’s going to blow up or disintegrate in 100 miles if you’re just noticing play now, but play means it should be replaced.
BBs are cheap. If yours is threaded, it’s a super easy task. They basically just screw right out, screw a new one in (you’ll need a stupid task specific wrench thiugh, and a second one for the little plastic cap on the non-drive side crank as well. Both are fairly cheap and on amazon).
If it’s press fit…I’d just bite the bullet and take to a shop and have it done right…
Edit: OK I just looked up what an OSBB is…yea looks like it’s press fit. I’d take it to a shop, sadly. If the ride is important to you, if ‘feels’ ok while riding, and as noted above it is definitely the cranks shifting a bit and not the BB cups themselves…I’d just ride it if the shop cant replace in time. The bearings are toast; no reason to worry about abusing them further.