Hi Sister Mayflower, and greetings in Jesus' name. I won't guess that you're coming down with shingles, pinched nerves around certain joints, or even the early stages of MS.
I could though observe that a young woman toting around a child near as big as you must have an effect; it continues to amaze me how young mothers survive any of that.
I just recently had both elbow and wrists (carpal tunnel) operated on to take the very symptons away that were causing my entire arms to stay numb and tingle. How do they discover it? a simple test of applying a very small eletrical pulse above the affected area and seeing if it appears a meter below the area. My problems were due to overusing certain parts of my anatomy weight lifting. Shingles earlier in my life were allowed in my life by God for my good. (Rom 8:28)
I will certainly pray for you that you remain well, and have a wonderful trip home. Father, please heal our sweet sister in Christ to be healed from all afflictions, and I give You the praise for it in Jesus' precious name. Amen.