Hi. I started on IRD last October, but 2 weeks in had a heart attack, so I had to come off for 4 weeks! I had just been diagnosed with angina, but I do find the chemo regime does play with my heart and I am never as good at the start of the week when I have my Dex and Ixamobib. My sleep problems are mainly on a Monday night, but sometimes it’s no problem, so it’s erratic. My heart rate does seem to go up then so that may be the cause. My Dex has been reduced to just 4mg, but I still feel the difference after I have it. I have now developed quite tender finger tips, rather than just a loss of sensation. The IRD has worked in bringing down my light chains from over 1000 when I started to about 200 two months ago – getting light chain results seems a bit unpredictable. Other side effects seem less than with the VTD that I started with, not so much loss of taste or appetite and not so shaky. I was also taken aback when I found it was an ongoing treatment, but I hope a lower maintenance dose will have less effect. At least on a pill regime I don’t have to go into hospital for infusions, so I can have more of a normal life. I only managed about 3 years after SCT before I had to start treatment again, so everyone is different and I guess side effects are as well. Good luck.