Jesus healed because healing is one of the signs to Israel that their Messiah has arrived (Matthew 8:17, Luke 7:19-22).
Whether it was easy for him to receive that gift, that is irrelevant, and even if it is not, your guess is as good as mine, since there is no scripture passage that answers that directly.
It seems you are spending way too much time trying to perceive everything in the written word through the lens of Israel.
Anyways,... before Jesus could begin His ministry, He went to John the baptist and was immersed in the Jordan by him. This was the first step towards receiving His ministry. The purpose in this was as Jesus said, to "fulfill all righteousness," but also to demonstrate an example to us. We need to be immersed Spiritually, ie born from above, and water during the immersion process represents The Holy Spirit and our born again experience. We must be born into the family of GOD by the blood of Jesus first before anything. The temple of GOD must be cleansed first by the blood.
Second,....After His water immersion, He then received the filling of The Holy Spirit inside from The Father with the gifts and the fruits. He was given the same 7 Spiritual gifts that the kings, prophets,, and priests had since the old testament was still in effect. It demonstrated to us that once our temple was cleansed by the blood, the presence of The Holy Spirit can be sought and received inside to teach and train us, but to also help us worship The Father and further solidify our Spiritual walk with Him.
Third,...After these two events, Jesus was then sent into a wilderness and separated completely from people, during which time He fasted 40 days and 40 nights. This demonstrates part of the sanctification process we have to go through where we draw near unto GOD over time, and free ourselves from the world and the effects of our flesh upon us.
Forth,.... Jesus went through the trials and temptations of satan after His wilderness. This demonstrated to us His walk by The Holy Spirit and His complete reliance upon and leading by Him. Everything that Jesus said and did at this point against satan was by The Holy Spirit, not Himself. Again, it is our example to fulfill. We have to get to the point where it is no longer us, but GOD.
The fifth and final thing that was needed for Jesus's ministry was the Spiritual anointing,.... as we see in His statement,....
Luk 4:18
The Spirit of the Lord is upon me, Because he anointed me to preach good tidings to the poor: He hath sent me to proclaim release to the captives, And recovering of sight to the blind, To set at liberty them that are bruised,
Luk 4:19
To proclaim the acceptable year of the Lord.
Every step that Jesus went through was part of an approval process with GOD towards the eventual Spiritual anointing upon His head, and the power of The Holy Spirit coming to rest and residing upon Him. Once reaching that point, the greater gifts could be operated by The Holy Spirit, meaning that the gifts of healings, the working of miracles, and the gift of faith all could be operated by The Holy Spirit through Him as part of a ministry.
The title "Christ" means The Anointed-
One.
This is why the majority of Christianity is not operating in the greater gifts of healing and such nowadays. Nobody really understands the process, let alone even wishes to attempt to go through it nowadays. They are more interested in their own things instead of the things of GOD, but also, once satan starts applying the pressure against people, they immediately buckle with their sins and give up and start crying. They just become good little churchgoers instead.
Like it or not, this is the approval process with GOD in scripture. You want a ministry similar to what Jesus had? You're not getting it for free like salvation. Pick it apart all you want, I don't care, it is the truth. Don't say you wasn't told.
