Crafty Granny, yes, Idohave regular full blood screenings done, including the Thyroxine levels as partofmy Diabetic check ups, but thankfully they appear normal. My new wig is from the online Uk based Simply Wigs store, and is made by Gisella Mayer. the old style wigs of years ago were indeed quite heavy and sweaty, and always had that tell tale circular stitch of hair at the crown, my own Mum bought one of these in the 1980s after having a mastectomy that left her struggling to style her own hair and lift her arms up propperly. The latest modern ones are much lighter, have better fitting types of caps, and now come in a choice of sizes, no longer a ' One size fits all! The company that I have bought mine from do an excellent detailed video of all the different features of each wig, including a view of the inside of the cap and all its features. The part that I did struggle with was choosing the correct colour, an actual swatch or sample of the hair shades would have been much more acurate and easy to choose from than rather taking 'pot luck' on a computer screen!