I'm sorry to hear that you're struggling with this. I'm sure there will be others who have experienced something similar - hopefully you'll get more replies to your post here soon.
Do discuss this with your doctor when you can, to see if there's anything they can suggest to help.
You are also welcome to give our nurses a call if you'd like to talk things through and get some suggestions. You can reach them on freephone 0808 800 4040 - Monday-Friday, 9-5.
