I had one while doing chemo. Mind you this was YEARS ago, and I hope they have improved since. it was wonderful, in that I no longer had to worry about access, but I was so skinny that I could feel that stupid thing in my neck. it freaked me out, and when I got the chance I had it removed. I am told that my being so skinny contributed to it, and that things have improved greatly since then.

I hope you are able to find a more comfortable way to get your meds. mine was a blessing and a curse.