Hi. I was diagnosed with invasive ductal cancer about 10 days ago and was feeling OK, but over the last few days, I have felt exhausted. I have read that treatments can cause fatigue, but I've not started any treatments yet. Trying to get a lot done before my surgery, so that could be the reason, but wondering if anyone knows if the cancer itself can cause tiredness?
Hello I’m post op for bilateral invasive ductal cancer grade 2 tumours,I’m now taking Tamoxifen and about to start radiotherapy on both breasts and all I can say is yes, the tiredness is part of it! I think you just have to do what you can in the day, but I have learnt to say if things are too much for me. It’s a strange journey but one we must take! That’s why this community is so important! Be kind to yourself much love x
Hi ,
Firstly, Welcome to the site, so sorry you find yourself here, however you are in the right place.
I’m pretty sure it is quite ‘normal’ and I use the word loosely as what is normal, to feel exhausted.
I think worry, stress and anxiety can all cause tiredness. Not to mention our sleepless nights, mind racing thoughts and our bodies are trying hard to fight the invaded in our bodies!
I know it’s so easy to say, try to rest, relax etc, try to take some time to just reflect, get into the mindset of ‘let’s get this done’,so you can move on.
Please keep in touch and let us know how you are getting on x
Thanks for your reply. I hope your pre-op went OK. When is your surgery? Just realised I said I had invasive ductal cancer but actually I have invasive lobular cancer - not that that really matters in the grand scheme of things!
Thank you for your reply. Good luck with the radiotherapy. It's reassuring (I think!) that the exhaustion is not just me!
Hi ,
My BC was Lobular too. Have you got a date for Radiotherapy?
Tiredness is associated with that too, my nurse told me, It takes a lot of energy for your body to heal itself. Rest whenever you can.
x
Hi Wakeywakey.. no it really doesn't matter pet..Pre op went well I shouldn't have to long to wait,lol although I'm dreading going in,my mum very ill at minute,she has sclc with Mets and is palliative care we only found out at start of July,they give her 6/9 mths with chemo and she had her last chemo last Friday,so the thought of going in while this is all going on is terrible, myself,sister and father have been sharing careing for mum and I really don't like the thought of being away from her for very long..how have you been? I hope your keeping well..I'm still a bit in shock that all this is going on..xx
Whatever cancer throws your way, we’re right there with you.
We’re here to provide physical, financial and emotional support.
© Macmillan Cancer Support 2025 © Macmillan Cancer Support, registered charity in England and Wales (261017), Scotland (SC039907) and the Isle of Man (604). Also operating in Northern Ireland. A company limited by guarantee, registered in England and Wales company number 2400969. Isle of Man company number 4694F. Registered office: 3rd Floor, Bronze Building, The Forge, 105 Sumner Street, London, SE1 9HZ. VAT no: 668265007