I have had a lump in my upper thigh for around 4-5 months and now it comes to a point when ever I touch it I get pins and needles throughout my leg which makes my leg feel achy and numb, the lump itself is hard and cannot be moved but now my leg feels weak, I have booked a doctors appointment for the 26th of this month however I think I am just worried, anyone know what it could be and if anyone has had this before

Just a side note as well to this I seem to have lost my appetite which my wife constantly gets at me for not eating as much on a night time but I always feel full, I use to eat large teas but I can't seem to finish it or don't have the appetite for it it may not even connect to this issue but thought I'd mention it