Possible to have necrosis from Restylane in chin without seeing it (discoloration)?

So I had restylane in my chin today and at one place or on one of the sides it is a lot more filler than on the other side. Its a huge lump there. I think it it because a lot of the filler migrated there. I can feel it. I dont have any discoloration in my chin other than a spot where i have a bluemark. But it is really painfull where the lump is, Compared to the other treated area. Can I have necrosis without seeing it? Without the discoloration? If the necrosis is below the muscle?