Like Judy says it is something you really have to bring up to your mum, it is embarrassing though and you may feel a bit silly saying it out loud. That's the negative side. The positive side to telling your mum would be that you can get it checked out, it lifts the weight off your shoulders (sometimes something strange happening to our bodies can be stressful, which could make the problem worse), also most importantly it means whatever it is causing bother, they may be able to find a way to stop it happening quite quickly.
If the problem is first saying it out loud, I sometimes find typing it in a message then holding my phone out to someone to read is easier.
Hope it all goes ok
Hey, I'm Gem with CF, age 28 and diagnosed at 2 years old. I'm from the UK so tell me if I say something you don't understand. I'm no expert but having CF myself I've learnt a few things along the way.
Diagnosed with: Cystic Fibrosis, Asthma, ABPA, Clinical Depression, Mild Liver Cirrohsis, Mild Osteopenia, Erythema Nodosum, Myopathy.