@Fionap2017 @Sister @jennyss. Glad it is not just me!! Hills are where it is the worst. Tired, burning weak thighs and feel like my heart is about to burst out of my chest. Can plod along quite happily on the flat but the minute I try an incline it is quite a struggle. I also get abit of the dizziness and nausea too. Might have to halve my run whilst going through the process and keep the inclines to a minimum till after treatment. So thankful for this forum. So great to get others experiences and makes u realise u aren’t alone xoxo