I had a nodule and several inconclusive biopsies. In the end they removed half my thyroid as they said the fact had 1 singular nodule was the biggest indicator it could be cancer. Apparently, multiple nodules rarely turn out out to he cancerous.
Mine was cancerous and 9 months later whilst in clinic they discovered another new single nodule on the other side of my thyroid, they'd left in. I had that removed and it turned out to be cancer too.
I had RAI treatment too after the second incident.
Almost upto 5 years all clear now.
Obviously I'm glad I had mine out as it was cancer but its not always as plain sailing as just take a tablet and all is OK forever afterwards, which is how it is sold by some surgeons/people.
My experience is I felt awful after my hemithyroidectomy. Really horrendous. No matter what they did with my levothyroxine I was a mess. No temperature control, shakes, brain fog, 22lbs weight gain in 9 months despite following the exact same weightloss plan I'd followed 18 months before diagnosis very successfully, heart palpitations, hair loss, nails falling off..... the list is endless.
As soon as I had the rest of my thyroid wasvwhipped out I felt human again. I've only needed my thyroxine tweaked once in 5 years. I can only assume my remaining thyroid was stopping and starting or something making me under and over medicated in continuous rounds.
I had a problem the first year after with calcium levels. Something to do with the remaining parathyroid glands. I think they may have been disturbed during the thyroid removal. I had to take a calcium drink twice daily for a few months but eventually my calcium levels sorted themselves out.
I now just have bloods done 2 x a year to check thyroid levels OK.