Juvederm volift traveled under eye area, advice needed?

Hello, I had juvederm voluma injected in my mid cheek and NL fold region 3 months ago, doc said the juvederm would last up to 12-18 months.. 3 months in the filler seems to have condiderably worn off, but now i can feel a moving filler lump right under my under eye area.. Could it have migrated? What should i do.. Ever since the procedure ive been feeling pressure on this side of my eye area when i lie flat, intially felt nerve pain throbbing to which settled in 2 weeks, My UK doc abroad based.