I went to the doctor this week and I have
Better to go for FNAC in the first place.
Thanks for your query.
Noted the history well and understood the concerns well.
Since you are 60 years old and there is a mass on left side of neck, FNAC that is Fine Needle Aspiration Cytology is recommended as this can be done as an office procedure.
Biopsy is done to confirm the FNAC findings.
Itching all over may not be related to the lymph node mass in neck.
Some redness with small bumps on the same side of neck too may not be related to the mass unless there is any infective pathology. This may well be an allergy to something else as you have not changed or added any medications.
Pain in abdomen for couple of weeks surely needs proper clinical evaluation, examination and further investigations to know the cause so that an appropriate management can be done.
You may please request for FNAC and if suspicious can proceed with biopsy.
I hope this answers your query and helps you in decision making.