Hi @KerynA ... welcome to the blog! Sorry to see you join us here.
Feel free to Tell us a bit more about your story so far -which BC were you diagnosed with & which surgery and treatments you've had so far .... it can become a bit of a 'diary' for you.
I didn't last long on Letrozole at all (6 weeks) before changing to Exemestane (for 6 months) and have been on Anastrozole ever since (over 5 years. I finish next year.)
How long have you been on CBD Oil? That is great that your Onc is OK with it. (So is mine - I have a letter from her, in case I have a roadside drug test saying that I am on it for side effects from BC medications.) It does take a little while to 'titrate' to the correct dosage for your symptoms (unlike tablets, that kick in straight away.)
I've been on CBD oil for about 4 years now - and it definitely helps take the edge off the aches & pains for me (I already had arthtritis before diagnosis, so the AIs just made it all worse!) I've not had any bad interactions - and it has helped me sleep as well. There are different 'strengths' of CBD oil too ....
If you go to the search area (in the blue banner) you can put in Medicinal Cannabis Oil and you'll see many posts on the subject
Take care & all the best.