Yes, such concerns are best dealt with by the priest, as they concern your immediate surroundings in the church which he is the shepherd of. And what about looking at the icons that surround you, and not the reader? At my church we have a lovely icon of St. Moses the Ethiopian that is generally closest to me, so if i find myself distracted at some point during the liturgy, I will often look to it briefly and say a silent prayer for strength like that of the great and powerful St. Moses, so as to be attentive as befits a servant of God.
Also there are prayers to the Theotokos found in the Agpeya that help with the kinds of temptations you're having, I find:"O pure Virgin, overshadow your servant with your instant help, and keep the waves of evil thoughts away from me, and raise up my ailing soul for prayer and vigil, for it has gone into a deep sleep. For you are a capable, compassionate and helpful mother, the bearer of the Fountain of Life, my King and my God, Jesus Christ, my hope."
I particularly like these prayers to the holy Virgin to fight lust (though the above is unspecified "evil thoughts", which is good because it is applicable to all kinds), because she is the ultimate model of purity for us all. Her intercessions are quite powerful for those who need help with that.
God be with you, James. I pray that He give you the strength needed to overcome your troubles.