Hi I Feel Really Paper Pud And Worried When Staying

Hi I feel really paper pud and worried when staying at friends houses or places away from my mum at nights when everyone goes to sleep in my friends house I start to feel ill like sick but I'm not actually and I feel abit faint and I start to panick and worry about my mum and I can never sleep anywhere away from my mums not even family members houses, my friends houses are like 2 minutes down the road but I just ant seem to stay the whole night I end up crying and coming home. It also happens when my mum is meant to come home from work if she is not in by a certain time I start to panick and get paranoid by looking out the window every minute and calling and texting her every minute, also I start to feel sick and can't seem to sit down because I have to keep walking around. It affects holidays with friends and I really feel this affects my life is there anything I can do or any medication I can take to help this. Thankyou