I would say that some people feel it and others will think youre insane. My partner gets really lively (which is impressive for him!) in some places; most recently he was telling me how he had never felt anything at Avebury but when we started walking along West Kennet Avenue he started going a bit odd...

I feel good and a bit light headed at some sites, Nine Stones Close had a great "feeling" about it whereas some places feel like they have been rinsed off all their power (Stonehenge!)

I wish I could feel the sites like your friend does, sounds amazing

x