My mum had one in each leg and has been getting treatment for them for about 4 weeks now, she has gone back to the Dr's this morning as they now think one of them is on the move, she isnt saying much but she seems a little worried, i dont know anthing about them really but her 'not saying much' makes people worry more! Can anyone give me any info, how serious they are etc??? She is 68 btw. TIA x