I'm not sure if I have cerebral palsy

When I was younger I got diagnosed with poor motor skills and poor gross skills they were originally going to diagnose me with cerebral palsy as my mum has got it and my nanny said it was hertridary so they didn't diagnose me I am now 20 and my leg muscles get incredibly tight when I walk and I suffer from hip pain which had been put down to loose hip muscles my arms also get tired quickly and I struggle to swim cos my arms get really tired I also have pains in my arms I struggle to walk downstairs without holding on to the bannister and I sometimes struggle to walk upstairs I have had physiotherapy and the physio said my calves were tight and my hip muscles was loose I also have really weak ankles and they sprain easily I also have flat feet and struggle to do a full rotation with my ankles  i also struggle with writing as my hands tigthen up and gets achey after ten minutes of writing if anyone can help me out I will be extremely greatful thank you