Struggling

is your roller one of those hard really bumpy ones?

Ouch.. are your shoes and socks the right ones for you? Is it both calves?

Warming up really well is the key to the running... and landing lightly too. We do have a tendency to thump down when we begin.. sheer concentration I feel

If the exercises are not helping.., and there is real pain..it could be time to get checked out..?

Do you stretch before a run, and are you keeping well hydrated with water (or a sports drink with electrolytes if you don't eat salted foods for example). Were you doing other exercise before starting, it may just be a fitness thing so perhaps do other leg exercises ( cycling is good). Do you run with heels hitting the ground first ( I once tried forefoot running, where you kind of lean forward and run on the balls of your feet and your toes and I could hardly walk for a week with the tightness in my calfs, won't be doing that again.) Footwear may be an issue especially if your trainers are very flat. If none of the above helps then yes, maybe get it checked out but sounds like technique/fitness to me ( but I'm not a medic!).

Hope you get it sorted soon, and can continue the plan.