Starting to worry after allergies to treatment and conflicting/missing information on my medical notes

Hi,  I'm 42 and was diagnosed with Grade 2 IDC. ER 8. PR 8, HER2 positive on 1st December.

I was prescribed 6 rounds of chemotherapy (Docetaxel) with hormones (Phesgo) 3 weeks apart and a full mastectomy and reconstruction in about 5 months time.

I had my first round of chemotherapy on 8th January.  But 0.4ml into the 20ml bag I had anaphylaxis and treatment was stopped.  I did have the Phesgo hormone too. 

On 9/1/23 I had a phone call from oncology to say they'd change my chemo to Abraxane from 31st January and steroids by AV and continue woth 3 week cycles.  So another 3 weeks with no chemotherapy in my system.

On 16/1/23 I phoned the oncology helpline about symptoms I was experiencing (fatigue,  nausea,  nosebleeds and a rash all over my body). They asked me to go in for tests. Blood tests came back clear and I was told I'd had an allergic reaction to the hormones administered on 8th January. 

What's worrying me is that the oncology registrar i spoke to on 16th January said there was no record on my file that I'd had an allergic reaction to the Docetaxel on 8th January.   She also told me it was logged that I'd had the full 20ml bag of Docetaxel, I didn't. The nurse showed me the full bag and told me I'd only had 0.4ml and therefore shouldn't need the anti nausea tablets.  The oncology registrar seemed to believe that I've had 20ml which I told her is incorrect. She asked me if I'd been given any medication to take for 2 days following the allergic reaction. I hadn't.

I've just seen a letter from my Oncologist to my GP dated 20th December stating I have G3 IDC. ER 8. PR 8, HER2 positive cancer.  A different grade to what I was told on 1st December.

I went into this feeling full of confidence but now I'm really worried.   

• I'm worried that the medical professionals think I've had a full round of chemo when I haven't.   Will my round on 32st be round 1 or round 2 as they think I've had a full bag of chemo on 8th January?
• I'm worried that it will be almost 2 months to the date of being diagnosed that I'll have my first real cycle of chemotherapy on 31st January. 
• I'm worried that the medical professionals haven't updated my files/notes properly 
• I'm worried that my cancer grading is different on different letters. Does this mean my cancer has moved from grade 2 to 3 whilst I've been waiting fir treatment?
• I'm worried that whilst all this is going on my cancer could be spreading.

I don't really know what I'm hoping to gain from this post.  I don't want to worry my lived ones about my anxieties but  I also don't want to sit back if there's something proactive I could do about this?  I don't want to be wasting professionals time or coming across rude by questioning them.

I have a phone appointment booked with my Oncologist on 26th January.  I'm seeing my GP tomorrow.  I just feel like I've spent 2 months with Jo treatment whilst the cancer has potentially shifted from grade 2 to 3 and possibly spread.

Am I over worrying?  Is this normal?   Pre-cancer I never got sick, rarely had colds etc so I'm not used to dealing with medical professionals so I don't know what's normal practice and what isn't.

Any advice would be greatly appreciated