If you feel sick in London I highly recommend going to the St Andrews Walk In Centre near Bromley By Bow Station in London.
It's the perfect place for a foreigner as it's quick, easy and best of all FREE!
Info is here:
To get there get off at Bromley By Bow station.
http://bit.ly/2mXaZuo
St Andrews Walk In Centre
http://bit.ly/2nqjdy5
http://bit.ly/2mXaZuo
St Andrews Walk In Centre
http://bit.ly/2nqjdy5