My mother and neighbor have taken Lantis without becoming drowsy. High blood sugar can make some people drowsy. Boredom can also do it. I would suspect those before I would the Lantis.
I believe you are correct. I checked on line and Humalog can cause muscle weakness, especially in women. Lantis lasts 24 hours and Humalog lasts a max of 5 1/2 hours they are noth insulin but act differently in people. I am glad that your mom is not affected by lantis. Thanks for the feedbadk.